🌿 Cannabis DLI Calculator
PPFD (μmol/m²/s)
Photoperiod (hours/day)
0.0
mol/m²/day
Enter values to calculate
Optimal DLI Ranges
Seedlings
15-25 mol/m²/day
Vegetative
25-40 mol/m²/day
Flowering
35-50+ mol/m²/day
DLI = PPFD × Photoperiod × 3600 ÷ 1,000,000