{"id":1785,"date":"2019-02-12T00:10:40","date_gmt":"2019-02-12T00:10:40","guid":{"rendered":"https:\/\/www.dimluxlighting.com\/?page_id=1785"},"modified":"2022-04-27T20:14:12","modified_gmt":"2022-04-27T20:14:12","slug":"vapor-pressure-deficit-vpd-calculator","status":"publish","type":"page","link":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/","title":{"rendered":"Vapor Pressure Deficit VPD Calculator"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1785\" class=\"elementor elementor-1785\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4738e78 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4738e78\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ef0e9a5\" data-id=\"ef0e9a5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1cbb6ee elementor-widget elementor-widget-heading\" data-id=\"1cbb6ee\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.19.0 - 28-02-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h1 class=\"elementor-heading-title elementor-size-default\">Vapor Pressure Deficit<br>Calculator <\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c1f30e elementor-widget elementor-widget-text-editor\" data-id=\"3c1f30e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.19.0 - 28-02-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Calculate both Room VPD and Leaf VPD automatically<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2090f4d6 elementor-section-content-middle elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"2090f4d6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-27c70ef\" data-id=\"27c70ef\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-964705c\" data-id=\"964705c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e85bed8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e85bed8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-dbbcf6f\" data-id=\"dbbcf6f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-379fefa\" data-id=\"379fefa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26dbe18 elementor-widget elementor-widget-text-editor\" data-id=\"26dbe18\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Just enter the value below to generate the VPD values for your room and your plants. You&#8217;ll need to know the room&#8217;s temperature, relative humidity, and the plant&#8217;s temperature. We recommend calibrating your sensors, so you are confident you have accurate results.\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-c55e765\" data-id=\"c55e765\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d994f1 elementor-widget elementor-widget-spacer\" data-id=\"4d994f1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.19.0 - 28-02-2024 *\/\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container{height:100%;width:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty,.e-con>.elementor-widget-spacer.elementor-widget-empty{position:relative;min-height:22px;min-width:22px}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon,.e-con>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;padding:0;width:22px;height:22px}<\/style>\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-267ce05 elementor-widget elementor-widget-heading\" data-id=\"267ce05\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">LEAF VPD CALCULATOR<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-907a58a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"907a58a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-179d187\" data-id=\"179d187\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-cb3ec7a\" data-id=\"cb3ec7a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-49dfb3d elementor-widget elementor-widget-shortcode\" data-id=\"49dfb3d\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><form name=\"cp_calculatedfieldsf_pform_1\" id=\"cp_calculatedfieldsf_pform_1\" action=\"?\" method=\"post\" enctype=\"multipart\/form-data\" class=\"cff-form \" >\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_pform_psequence\" value=\"_1\" \/>\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_id\" value=\"6\" \/><pre style=\"display:none !important;\"><script type=\"text\/javascript\">form_structure_1=[[{\"form_identifier\":\"\",\"name\":\"fieldname8\",\"shortlabel\":\"\",\"index\":0,\"ftype\":\"fradio\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"\",\"layout\":\"side_by_side\",\"required\":false,\"toSubmit\":\"value\",\"choiceSelected\":\"Fahrenheit  - 0\",\"showDep\":false,\"untickAccepted\":false,\"choices\":[\"Fahrenheit \",\"Celsius\"],\"choicesVal\":[\"0\",\"1\"],\"choicesDep\":[[],[]],\"fBuild\":[],\"parent\":\"\"},{\"form_identifier\":\"\",\"name\":\"fieldname2\",\"shortlabel\":\"\",\"index\":1,\"ftype\":\"fnumber\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Room Temperature\",\"predefined\":\"\",\"predefinedClick\":false,\"required\":true,\"readonly\":false,\"size\":\"small\",\"thousandSeparator\":\"\",\"decimalSymbol\":\".\",\"min\":\"\",\"max\":\"\",\"formatDynamically\":true,\"dformat\":\"number\",\"formats\":[\"digits\",\"number\",\"percent\"],\"fBuild\":[],\"parent\":\"\"},{\"form_identifier\":\"\",\"name\":\"fieldname3\",\"shortlabel\":\"\",\"index\":2,\"ftype\":\"fnumber\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Relative Humidity\\u003Cbr \\\/\\u003EEnter whole numbers. ex: enter 50 for 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C\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(fieldname2-32)\\\/1.8\",\"suffix\":\"\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"hidefield\":true,\"fBuild\":[],\"parent\":\"\"},{\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"form_identifier\":\"\",\"name\":\"fieldname10\",\"shortlabel\":\"\",\"index\":4,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Atmospheric Saturated Vapor Pressure (ASVP)\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(function(){\\n\\nif(fieldname8 == 1) return prec(0.61078*POW(2.71828, (fieldname2\\\/(fieldname2+237.3) * 17.2694)), 2);\\n\\nif(fieldname8 == 0) return prec(0.61078*POW(2.71828, (fieldname9\\\/(fieldname9+237.3) * 17.2694)), 2);\\n\\n})();\\n\",\"suffix\":\" hPa\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"hidefield\":true,\"fBuild\":[],\"parent\":\"\"},{\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"form_identifier\":\"\",\"name\":\"fieldname5\",\"shortlabel\":\"Room VPD\",\"index\":5,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Room Vapor Pressure Deficit (VPD of the Room)\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(function(){\\n\\nif(fieldname2\\u003E0 && fieldname3\\u003E0) return prec(fieldname10*(1-fieldname3\\\/100), 2);\\n\\n\\n})();\",\"suffix\":\" kPa\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"hidefield\":false,\"fBuild\":[],\"parent\":\"\"},{\"form_identifier\":\"\",\"name\":\"fieldname12\",\"shortlabel\":\"\",\"index\":6,\"ftype\":\"fCommentArea\",\"userhelp\":\" \",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Leaf Vapor Pressure Deficit (LVPD)\",\"fBuild\":[],\"parent\":\"\"},{\"form_identifier\":\"\",\"name\":\"fieldname4\",\"shortlabel\":\"\",\"index\":7,\"ftype\":\"fnumber\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Leaf Temperature: Use an IR thermometer to get the reading.\",\"predefined\":\"\",\"predefinedClick\":false,\"required\":false,\"readonly\":false,\"size\":\"small\",\"thousandSeparator\":\"\",\"decimalSymbol\":\".\",\"min\":\"\",\"max\":\"\",\"formatDynamically\":false,\"dformat\":\"number\",\"formats\":[\"digits\",\"number\",\"percent\"],\"fBuild\":[],\"parent\":\"\"},{\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"form_identifier\":\"\",\"name\":\"fieldname11\",\"shortlabel\":\"\",\"index\":8,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"F to C\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(fieldname4-32)\\\/1.8\",\"suffix\":\"\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"hidefield\":true,\"fBuild\":[],\"parent\":\"\"},{\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"form_identifier\":\"\",\"name\":\"fieldname1\",\"shortlabel\":\"\",\"index\":9,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"title\":\"Leaf VPD\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(function(){\\n\\nif(fieldname8 == 1 && fieldname4\\u003E0 && fieldname2\\u003E0 && fieldname3\\u003E0) return prec(0.61078*POW(2.71828, (fieldname4\\\/(fieldname4+237.3) * 17.2694))-(fieldname10*fieldname3\\\/100), 2);\\n\\nif(fieldname8 == 0 && fieldname4\\u003E0 && fieldname2\\u003E0 && fieldname3\\u003E0) return prec(0.61078*POW(2.71828, (fieldname11\\\/(fieldname11+237.3) * 17.2694))-(fieldname10*fieldname3\\\/100), 2);\\n\\n})();\\n\",\"suffix\":\" kPa\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"hidefield\":false,\"fBuild\":[],\"parent\":\"\"}],{\"0\":{\"title\":\"\",\"description\":\"\",\"formlayout\":\"top_aligned\",\"autocomplete\":1,\"formtemplate\":\"\",\"evalequations\":1,\"evalequationsevent\":2,\"persistence\":0,\"customstyles\":\"\"},\"formid\":\"cp_calculatedfieldsf_pform_1\"}];<\/script><\/pre>\n<div id=\"fbuilder\">\n\t\t<div id=\"fbuilder_1\">\n\t\t<div id=\"formheader_1\"><\/div>\n\t\t<div id=\"fieldlist_1\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n<div class=\"clearer\"><\/div>\n<\/form>\n\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-2c22144\" data-id=\"2c22144\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-b82de6c elementor-widget elementor-widget-spacer\" data-id=\"b82de6c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-c450675\" data-id=\"c450675\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b2e314 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b2e314\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18760ca\" data-id=\"18760ca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7c86f9b elementor-widget elementor-widget-heading\" data-id=\"7c86f9b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">DOWNLOAD THE PRINTABLE VPD CHARTS PDF<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1816b35 elementor-widget elementor-widget-text-editor\" data-id=\"1816b35\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Submit your email address and we&#8217;ll send them to you right away.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-2aff138 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2aff138\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-a96e242\" data-id=\"a96e242\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-868d960\" data-id=\"868d960\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b22e62 elementor-widget elementor-widget-shortcode\" data-id=\"5b22e62\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"2918\" class=\"elementor elementor-2918\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a072a7a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a072a7a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8b0f711\" data-id=\"8b0f711\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0e5e139 elementor-widget elementor-widget-html\" data-id=\"0e5e139\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<iframe allowtransparency=\"true\" style=\"border: none; height: 375px; overflow: hidden;\" src=\"https:\/\/creatorapp.zohopublic.com\/globalgarden\/webforms\/form-embed\/Main_Form\/OJ3PkM0W3Mk5v3E4hm9TYenWF3Nt7TW6NstGjTvnmTCfGfHnV4KPKtypQsExuENEkkHQxMEMFQuCn1Q4dPJer0Tk3Bgt2vAw0Ona?Form_Type=VPD%20Printable%20Chart%20Download%20Form\" width=\"100%\" height=\"800px\"><\/iframe>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-ecc5079\" data-id=\"ecc5079\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0ce4f1 elementor-widget elementor-widget-spacer\" data-id=\"a0ce4f1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6167fa4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6167fa4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2f97bd0\" data-id=\"2f97bd0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e147d43 elementor-widget elementor-widget-html\" data-id=\"e147d43\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<p class=\"CenterThis\"><img fetchpriority=\"high\" decoding=\"async\" class=\"ResponsiveImage\" src=\"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg\" width=\"900\" height=\"450\" name=\"VPDChart\" alt=\"Leaf Vapor Pressure Deficit Charts\" border=\"0\">\n<\/p>\n\n<div class=\"MouseOverBackground\">\n    <strong>Vapor Pressure Deficit Charts by Leaf Temp<\/strong><br \/><br \/>\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V0');\">&nbsp;0\u00b0 F&nbsp;<\/a> |\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V1');\">&nbsp;-1\u00b0 F&nbsp;<\/a> |\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V2');\">&nbsp;-2\u00b0 F&nbsp;<\/a> |\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V3');\">&nbsp;-3\u00b0 F&nbsp;<\/a> |\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V4');\">&nbsp;-4\u00b0 F&nbsp;<\/a> |\n<a href=\"javascript:void(0)\" onmouseover=\"switchimage('VPDChart','V5');\">&nbsp;-5\u00b0 F&nbsp;<\/a>\n<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-961d693 elementor-widget elementor-widget-html\" data-id=\"961d693\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script language=\"javascript\">\n\/\/<!-- Comment tag for older browsers\nV0 = new Image(900,450)\nV0.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-0.jpg'\nV1 = new Image(900,450)\nV1.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-1.jpg'\nV2 = new Image(900,450)\nV2.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-2.jpg'\nV3 = new Image(900,450)\nV3.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-3.jpg'\nV4 = new Image(900,450)\nV4.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-4.jpg'\nV5 = new Image(900,450)\nV5.src = 'https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg'\n\nfunction switchimage(imgDocID,imgObjName) \n{\n\tdocument[imgDocID].src = eval(imgObjName + 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You&#8217;ll need to know the room&#8217;s temperature, relative humidity, and the plant&#8217;s temperature. We recommend calibrating your sensors, so you are confident you have accurate results.\u00a0 LEAF VPD [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":29,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vapor Pressure Deficit VPD Calculator - Dimlux Lighting - The Best Grow Lights<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vapor Pressure Deficit VPD Calculator - Dimlux Lighting - The Best Grow Lights\" \/>\n<meta property=\"og:description\" content=\"Vapor Pressure DeficitCalculator Calculate both Room VPD and Leaf VPD automatically Just enter the value below to generate the VPD values for your room and your plants. 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Dimlux Lighting - The Best Grow Lights","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/","og_locale":"en_US","og_type":"article","og_title":"Vapor Pressure Deficit VPD Calculator - Dimlux Lighting - The Best Grow Lights","og_description":"Vapor Pressure DeficitCalculator Calculate both Room VPD and Leaf VPD automatically Just enter the value below to generate the VPD values for your room and your plants. You&#8217;ll need to know the room&#8217;s temperature, relative humidity, and the plant&#8217;s temperature. We recommend calibrating your sensors, so you are confident you have accurate results.\u00a0 LEAF VPD [&hellip;]","og_url":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/","og_site_name":"Dimlux Lighting - The Best Grow Lights","article_publisher":"https:\/\/www.facebook.com\/dimluxlighting\/","article_modified_time":"2022-04-27T20:14:12+00:00","og_image":[{"url":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/","url":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/","name":"Vapor Pressure Deficit VPD Calculator - Dimlux Lighting - The Best Grow Lights","isPartOf":{"@id":"https:\/\/www.dimluxlighting.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/#primaryimage"},"image":{"@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/#primaryimage"},"thumbnailUrl":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg","datePublished":"2019-02-12T00:10:40+00:00","dateModified":"2022-04-27T20:14:12+00:00","breadcrumb":{"@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/#primaryimage","url":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg","contentUrl":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2019\/02\/Leaf-Vapor-Pressure-Deficit-VPD-5.jpg","width":1020,"height":555},{"@type":"BreadcrumbList","@id":"https:\/\/www.dimluxlighting.com\/knowledge\/vapor-pressure-deficit-vpd-calculator\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.dimluxlighting.com\/"},{"@type":"ListItem","position":2,"name":"Knowledge","item":"https:\/\/www.dimluxlighting.com\/knowledge\/"},{"@type":"ListItem","position":3,"name":"Vapor Pressure Deficit VPD Calculator"}]},{"@type":"WebSite","@id":"https:\/\/www.dimluxlighting.com\/#website","url":"https:\/\/www.dimluxlighting.com\/","name":"Dimlux Lighting - The Best Grow Lights","description":"The best double ended grow lights on Earth.","publisher":{"@id":"https:\/\/www.dimluxlighting.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.dimluxlighting.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.dimluxlighting.com\/#organization","name":"Dimlux North America","url":"https:\/\/www.dimluxlighting.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dimluxlighting.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2018\/10\/favicon.png","contentUrl":"https:\/\/www.dimluxlighting.com\/wp-content\/uploads\/2018\/10\/favicon.png","width":512,"height":512,"caption":"Dimlux North America"},"image":{"@id":"https:\/\/www.dimluxlighting.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/dimluxlighting\/","https:\/\/twitter.com\/dimluxlighting","https:\/\/www.youtube.com\/channel\/UCKIzg8t5OkWtWdCs99O9j8w"]}]}},"_links":{"self":[{"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/pages\/1785"}],"collection":[{"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/comments?post=1785"}],"version-history":[{"count":0,"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/pages\/1785\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/pages\/29"}],"wp:attachment":[{"href":"https:\/\/www.dimluxlighting.com\/wp-json\/wp\/v2\/media?parent=1785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}