Event Power Calculator
Calculate total power requirements for events including lighting, sound, catering, generator sizing, and circuit counts.
Inputs
Results
With 20% Margin
15,600W
Generator Size (kW)
19.5 kW
Total Power (watts)13,000W
Amps at 120V130A
Amps at 208V (3-phase)75A
Generator Size (kVA)24.4 kVA
20A Circuits Needed9
Fuel Use (gal/hr)1.37
Amps240V65
Circuits30A6
How to Use This Calculator
- Enter Lighting (watts), Sound System (watts), Catering (watts), and Misc Equipment (watts).
- Review Total Watts and the Safety Margin added for generator headroom.
- Check recommended Generator Size (kW) — select the next standard size above the calculated need.
- Verify the generator can handle motor starting loads (typically 2-3x running watts for motors).
- Confirm the generator's amperage output matches your distribution panel requirements.
Ad Placeholder
Related Calculators
Sound System Sizing Calculator
Size a sound system for your event with speaker count, subwoofers, monitors, and amplifier power based on venue size and audience.
Stage Design Calculator
Calculate stage dimensions, wing space, monitor positions, and weight capacity for live performances and events.
Tent Sizing Calculator
Calculate tent dimensions for events with seated dinner or cocktail style, dance floor, food stations, and bars.
Event Insurance Calculator
Estimate event insurance premiums for general liability, liquor liability, cancellation, and property damage coverage.
Ad Placeholder