Studio Lighting Power Calculator

Calculate total power requirements, circuit needs, and estimated light output for your studio setup.

Total floor area of your studio in square feet.
sq ft
Height from floor to ceiling. Higher ceilings require more powerful lights.
ft
Total number of studio lights in your setup.
lights
Power rating of each light. Common values: 100-300W LED, 300-1200W strobes.
W
Light modifier affects output. Softboxes lose ~1.5 stops, umbrellas ~1 stop, beauty dishes ~0.5 stops.

Results

Total Watts-W
Amps Needed (120V)-A
Circuits Required (20A)-circuits
Effective Guide Number-GN ft ISO100
Ambient Light Ratio-
Reference: Circuit calculations based on NEC 80% continuous load rule. Guide number estimates based on typical strobe efficiency ratings.