1 kW = 1.341022 hp · 1 hp = 0.7456999 kW
1 kilowatt (kW) in hp
1.341022hp
Watts
1,000W
Kilowatts
1kW
Horsepower (mech.)
1.341hp
Metric horsepower
1.3596PS
BTU per hour
3,412.1BTU/h
Tons of refrigeration
0.2843TR
Energy in 1 hour
1kWh
Energy per day (24 h)
24kWh
Energy per year (8760 h)
8.76MWh
at constant full power
SI units
| Unit | 1 kW equals | 1 unit in kW |
|---|---|---|
| milliwatt (mW) | 1,000,000 | 0.000001 |
| watt (W) | 1,000 | 0.001 |
| kilowatt (kW) | 1 | 1 |
| megawatt (MW) | 0.001 | 1,000 |
| gigawatt (GW) | 0.000001 | 1,000,000 |
| terawatt (TW) | 1 × 10⁻⁹ | 1,000,000,000 |
Horsepower units
| Unit | 1 kW equals | 1 unit in kW |
|---|---|---|
| horsepower, mechanical (hp, imperial) | 1.341022 | 0.7456999 |
| horsepower, metric (PS, CV, ch, pk) | 1.359622 | 0.7354988 |
| horsepower, electrical (746 W) | 1.340483 | 0.746 |
| boiler horsepower | 0.101942 | 9.8095 |
Heating & cooling units
| Unit | 1 kW equals | 1 unit in kW |
|---|---|---|
| BTU per hour (BTU/h) | 3,412.142 | 0.0002930711 |
| thousand BTU per hour (MBH, kBtu/h) | 3.412142 | 0.2930711 |
| million BTU per hour (MMBtu/h) | 0.003412142 | 293.0711 |
| ton of refrigeration (TR, 12,000 BTU/h) | 0.2843451 | 3.516853 |
| kilocalorie per hour (kcal/h) | 859.8452 | 0.001163 |
| megacalorie per hour (Mcal/h) | 0.8598452 | 1.163 |
| calorie per second (cal/s) | 238.8459 | 0.0041868 |
Mechanical units
| Unit | 1 kW equals | 1 unit in kW |
|---|---|---|
| foot-pound force per second (ft·lbf/s) | 737.5621 | 0.001355818 |
| foot-pound force per minute (ft·lbf/min) | 44,253.73 | 0.00002259697 |
| kilogram-force metre per second (kgf·m/s) | 101.9716 | 0.00980665 |
| erg per second (erg/s) | 10,000,000,000 | 1 × 10⁻¹⁰ |
Energy-rate units
| Unit | 1 kW equals | 1 unit in kW |
|---|---|---|
| kWh per day (average power) | 24 | 0.04166667 |
| MWh per year (average power) | 8.76 | 0.1141553 |
| TWh per year (average power) | 0.00000876 | 114,155 |
| tonne of oil equivalent per year | 0.7532244 | 1.327626 |
- Mechanical (imperial) horsepower = 550 ft·lbf/s = 745.700 W; metric horsepower (PS, CV, ch) = 75 kgf·m/s = 735.499 W; electrical horsepower = 746 W exactly; boiler horsepower = 33,475 BTU/h.
- A ton of refrigeration (12,000 BTU/h) is the heat needed to melt one short ton of ice in 24 hours. Cooling capacity is thermal power: divide by the EER/COP to get electrical input.
- Energy-rate rows (kWh/day, TWh/yr) express a constant average power; they are handy for comparing demand figures.