Grow light coverage and PPFD calculator

Check whether your fixtures deliver enough light for your canopy, and how many you need to hit the target for each growth stage.

ft
ft
W
umol/J

Typical efficacy: modern LED 2.5 to 3.0, older LED 1.8 to 2.3, double-ended HPS 1.7, CMH 1.9.

hours
0average PPFD (umol/m2/s)

DLI
Canopy area
Total PPF installed
Fixtures needed for target
Watts per sq ft
Max photoperiod at this PPFD before DLI passes 45
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