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Daily Light Integral DLI Calculator
Calculate the daily light integral for plants from PPFD and photoperiod.
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Daily light integral
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Calculate the daily light integral for plants from PPFD and photoperiod.
Daily Light Integral DLI Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: DLI = PPFD x hours x 0.0036.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Daily Quick Guide
Typical values for reference.
| PPFD | Hours | DLI | |
|---|---|---|---|
| 300 | 16 | 17.3 mol/m2/day | |
| 150 | 12 | 6.5 mol/m2/day | |
| 500 | 14 | 25.2 mol/m2/day | |
| 800 | 18 | 51.8 mol/m2/day | |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Daily Light Integral Calculator FAQ
Answers to common questions about this calculator.
The total amount of photosynthetic light a plant receives in a day.
About 20 to 30 mol per square metre.
Increase intensity or photoperiod.
With a quantum sensor.