hp to kW Converter (Horsepower to Kilowatts)
Convert horsepower to kilowatts for car registration, insurance and motor sizing. 1 hp = 0.7457 kW, so 150 hp is 111.85 kW and 300 hp is 223.71 kW.
Referencias del mundo real
Matriz de conversión entre unidades
| Grupo | Unidad | Símbolo | Valor equivalente |
|---|---|---|---|
| SI y métrico | Milivatio | mW | 1,1185E8 |
| SI y métrico | Vatio | W | 111.854,9807 |
| SI y métrico | Kilovatio | kW | 111,855 |
| SI y métrico | Megavatio | MW | 0,1119 |
| Caballos de fuerza | Caballo de fuerza mecánico | hp | 150 |
| Caballos de fuerza | Caballo de vapor métrico (PS) | PS | 152,0804 |
| Caballos de fuerza | Caballo de fuerza eléctrico | hp(E) | 149,9397 |
| Térmico e imperial | BTU por hora | BTU/h | 381.665,0366 |
| Térmico e imperial | Pie-libra por segundo | ft·lbf/s | 82.500 |
| Térmico e imperial | Kilocaloría por hora | kcal/h | 96.177,9714 |
| Térmico e imperial | Tonelada de refrigeración | TR | 31,8054 |
Explicación matemática paso a paso
- Paso 1: convierte 150 hp a la unidad base (W): 150 × 745,699871582 = 111.854,980737 W.
- Paso 2: convierte vatios (base) a kilovatios: 111.854,980737 ÷ 1000 = 111,854981 kW.
- Factor directo: 1 hp = 0,74569987 kW.
Factores de conversión esenciales
Caballo de fuerza mecánico: Caballo de fuerza imperial de EE. UU. y el Reino Unido (550 ft·lbf/s)
hp to kW formula
Respuesta directa: 1 hp = 0,74569987 kW, so multiply by 0,74569987: kW = hp × 0,74569987. Going back: hp = kW × 1,3410221.
How to convert caballos de fuerza mecánicos to kilovatios
One mechanical horsepower is 550 ft·lbf/s, exactly 745.69987158 W. Multiply horsepower by 0.7457 to get kilowatts. If the figure is metric horsepower (PS, CV, ch), multiply by 0.7355 instead; the converter's unit list includes both.
1. hp → kW
Multiply the number of caballos de fuerza mecánicos by the conversion factor:
Example: 150 hp × 0,74569987 = 111,85 kW.
2. kW → hp
To go back, divide by the same factor, or multiply by its reciprocal, 1,3410221:
Example: 111,85 kW ÷ 0,74569987 = 150 hp.
Mental math: take off a quarter
Subtract a quarter of the horsepower. The estimate is about 0.6% high:
200 hp: 200 − 50 = 150 kW (exact: 149.14 kW).
1 hp in other potencia units
| Unit | 1 hp equals | Typical use |
|---|---|---|
| Milivatio | 745.699,87 mW | Láseres y transmisores de radio |
| Vatio | 745,69987 W | Unidad de potencia del SI (1 J/s) |
| Kilovatio | 0,74569987 kW | Motores, motores de vehículos eléctricos y electrodomésticos |
| Megavatio | 0,00074569987 MW | Centrales eléctricas y aerogeneradores |
| Caballo de vapor métrico (PS) | 1,0138697 PS | Potencia de coches europeos: PS, CV, pk |
| Caballo de fuerza eléctrico | 0,99959768 hp(E) | Placas de características de motores eléctricos (746 W) |
| BTU por hora | 2544,4336 BTU/h | Aires acondicionados y calderas |
| Pie-libra por segundo | 550 ft·lbf/s | Potencia mecánica imperial |
| Kilocaloría por hora | 641,18648 kcal/h | Calefacción y tasa metabólica |
| Tonelada de refrigeración | 0,21203613 TR | Capacidad de enfriadoras y climatización (12.000 BTU/h) |
hp to kW chart
| hp | kW |
|---|---|
| 0,5 | 0,37 |
| 1 | 0,75 |
| 2 | 1,49 |
| 3 | 2,24 |
| 5 | 3,73 |
| 7,5 | 5,59 |
| 10 | 7,46 |
| 15 | 11,19 |
| 20 | 14,91 |
| 25 | 18,64 |
| 50 | 37,28 |
| 75 | 55,93 |
| 100 | 74,57 |
| 120 | 89,48 |
| 150 | 111,85 |
| 180 | 134,23 |
| 200 | 149,14 |
| 250 | 186,42 |
| 300 | 223,71 |
| 350 | 260,99 |
| 400 | 298,28 |
| 450 | 335,56 |
| 500 | 372,85 |
| 600 | 447,42 |
| 700 | 521,99 |
| 1000 | 745,7 |
kW to hp chart
| kW | hp |
|---|---|
| 0,37 | 0,5 |
| 0,75 | 1,01 |
| 1 | 1,34 |
| 1,5 | 2,01 |
| 2,2 | 2,95 |
| 3 | 4,02 |
| 4 | 5,36 |
| 5 | 6,71 |
| 7,5 | 10,06 |
| 10 | 13,41 |
| 11 | 14,75 |
| 15 | 20,12 |
| 20 | 26,82 |
| 25 | 33,53 |
| 30 | 40,23 |
| 40 | 53,64 |
| 50 | 67,05 |
| 55 | 73,76 |
| 60 | 80,46 |
| 75 | 100,58 |
| 80 | 107,28 |
| 90 | 120,69 |
| 100 | 134,1 |
| 110 | 147,51 |
| 120 | 160,92 |
| 150 | 201,15 |
| 200 | 268,2 |
| 250 | 335,26 |
| 300 | 402,31 |
| 400 | 536,41 |
| 500 | 670,51 |
Preguntas frecuentes
What is 100 hp in kW?
100 hp is 74,57 kW (100 × 0,74569987).
What is 300 hp in kW?
300 hp is 223,71 kW (300 × 0,74569987).
How many kW is 1 horsepower?
One mechanical horsepower is 0.7457 kW (745.7 W). One metric horsepower (PS) is 0.7355 kW.
Why does my car's registration show kW instead of hp?
The kilowatt is the SI unit of power, and EU and Australian registration documents use it. Multiply the kW figure by 1.341 for hp or 1.360 for PS.