BTU/hr to Watts Converter
HVAC thermal capacity to electrical sizing, heat pump performance calculation. Converts British Thermal Units per hour to electrical power in Watts.
Step-by-Step Derivation ▼ Show Steps
Calculations adhere to standard electrical equations and National Electrical Code guidelines.
Engineering Principles & Calculations
This calculator uses the exact mathematical relationships between Thermal Rating (BTU/hr) to determine Electrical Equivalent (Watts & Kilowatts). In practical applications, electrical systems must account for safety derating factors, nominal vs actual voltages, and conductor resistance losses.
Converts British Thermal Units per hour to electrical power in Watts.
Typical Application & Best Practices
HVAC thermal capacity to electrical sizing, heat pump performance calculation.
BTU/hr to Watts Converter Benchmark Lookup Table
| BTU/hr | Tons AC | Thermal Watts | Kilowatts | Resistive Amps @ 240V |
|---|---|---|---|---|
| 5,000 BTU | 0.42 Ton | 1,465 W | 1.47 kW | 6.1 A |
| 8,000 BTU | 0.67 Ton | 2,345 W | 2.35 kW | 9.8 A |
| 12,000 BTU | 1.00 Ton | 3,517 W | 3.52 kW | 14.7 A |
| 18,000 BTU | 1.50 Ton | 5,275 W | 5.28 kW | 22.0 A |
| 24,000 BTU | 2.00 Ton | 7,034 W | 7.03 kW | 29.3 A |
| 36,000 BTU | 3.00 Ton | 10,551 W | 10.55 kW | 44.0 A |