Houseplant Lighting Calculator

Calculate the optimal light intensity and duration for your houseplant.
The calculator supports bright direct light, bright indirect light, medium light, and low light indoor plants.

How it Works

Input your values to calculate your individual plant lighting recommendation.

The calculation is based on the daily light integral (DLI), which is the main measure for an optimal amount of light for plants.

Plant Species / Genus
Custom DLI
iYou can research your plant's DLI requirement and add it directly to the calculation
mol/m2d
Measured PPFD
iMeasure PPFD using a specialized PAR meter.
We recommend using the free Photone Grow Light Meter app.
µmol/m2s
Lighting Duration
hours

Embed this calculator on your website

You can freely use this calculator on your own site. Just copy the code below and insert it into your HTML.

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  <iframe width="640" height="1040" src="https://www.houseplantlight.com/embed/calculator.html" frameborder="0" allowfullscreen></iframe>
</div>
<style>
  .iframe-container {
    overflow: scroll;
    max-width: 640px;
    padding-top: 130%;
    position: relative;
    margin 0 auto;
  }
  .iframe-container iframe {
     border: 0;
     height: 100%;
     left: 0;
     position: absolute;
     top: 0;
     width: 100%;
  }
</style>
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