Daily Light Integral Calculator
Compute the Daily Light Integral (DLI) for indoor crops to optimize artificial lighting cycles and growth rate.
Input Parameters
Enter details for calculation.
Daily Light Integral
Expert Tip
Most vegetable seedlings need 12-15 mol/m²/day. Fruiting plants like tomatoes or peppers grow best with 20-30 mol/m²/day.
Calculation Methodology & Details
Formula
PPFD measures light intensity per second. We multiply by 3,600 (seconds in an hour) and the photoperiod hours, then divide by 1,000,000 to convert micro-moles to full moles.
Important Disclaimer
The calculations provided are for educational and general planning guidelines only. They do not replace professional agronomic advice or certified agricultural testing.
How to Calculate DLI
Follow these steps to find your plant's daily light dose:
Measure PPFD
Use a PAR meter at canopy level to measure the PPFD value.
Note Photoperiod
Record the number of hours the grow lights remain on each day.
Evaluate Results
Compare the calculated DLI to the target range required by your specific plant species.