kW to hp Converter (Kilowatts to Horsepower)
Convert kilowatts to horsepower for car engines, electric motors and generators. 1 kW = 1.34102 hp (mechanical horsepower), so 100 kW is 134.1 hp. European specs often quote metric PS instead: 1 kW = 1.35962 PS.
Referencias del mundo real
Matriz de conversión entre unidades
| Grupo | Unidad | Símbolo | Valor equivalente |
|---|---|---|---|
| SI y métrico | Milivatio | mW | 1,0000E8 |
| SI y métrico | Vatio | W | 100.000 |
| SI y métrico | Kilovatio | kW | 100 |
| SI y métrico | Megavatio | MW | 0,1 |
| Caballos de fuerza | Caballo de fuerza mecánico | hp | 134,1022 |
| Caballos de fuerza | Caballo de vapor métrico (PS) | PS | 135,9622 |
| Caballos de fuerza | Caballo de fuerza eléctrico | hp(E) | 134,0483 |
| Térmico e imperial | BTU por hora | BTU/h | 341.214,1633 |
| Térmico e imperial | Pie-libra por segundo | ft·lbf/s | 73.756,2149 |
| Térmico e imperial | Kilocaloría por hora | kcal/h | 85.984,5228 |
| Térmico e imperial | Tonelada de refrigeración | TR | 28,4345 |
Explicación matemática paso a paso
- Paso 1: convierte 100 kW a la unidad base (W): 100 × 1000 = 100.000 W.
- Paso 2: convierte vatios (base) a caballos de fuerza mecánicos: 100.000 ÷ 745,699871582 = 134,102209 hp.
- Factor directo: 1 kW = 1,34102209 hp.
Factores de conversión esenciales
Kilovatio: Motores, motores de vehículos eléctricos y electrodomésticos
kW to hp formula
Respuesta directa: 1 kW = 1,3410221 hp, so multiply by 1,3410221: hp = kW × 1,3410221. Going back: kW = hp × 0,74569987.
How to convert kilovatios to caballos de fuerza mecánicos
Mechanical (imperial) horsepower is 550 foot-pounds per second, which is 745.69987 W. Dividing watts by that, or multiplying kilowatts by 1.34102, gives hp. The metric horsepower (PS, CV, ch) is 735.49875 W, about 1.4% smaller, which is why the same engine shows a higher PS figure than hp.
1. kW → hp
Multiply the number of kilovatios by the conversion factor:
Example: 100 kW × 1,3410221 = 134,1 hp.
2. hp → kW
To go back, divide by the same factor, or multiply by its reciprocal, 0,74569987:
Example: 134,1 hp ÷ 1,3410221 = 100 kW.
Mental math: add a third
Add a third of the kilowatts. The estimate is about 0.6% low:
90 kW: 90 + 30 = 120 hp (exact: 120.69 hp).
1 kW in other potencia units
| Unit | 1 kW equals | Typical use |
|---|---|---|
| Milivatio | 1.000.000 mW | Láseres y transmisores de radio |
| Vatio | 1000 W | Unidad de potencia del SI (1 J/s) |
| Megavatio | 0,001 MW | Centrales eléctricas y aerogeneradores |
| Caballo de fuerza mecánico | 1,3410221 hp | Caballo de fuerza imperial de EE. UU. y el Reino Unido (550 ft·lbf/s) |
| Caballo de vapor métrico (PS) | 1,3596216 PS | Potencia de coches europeos: PS, CV, pk |
| Caballo de fuerza eléctrico | 1,3404826 hp(E) | Placas de características de motores eléctricos (746 W) |
| BTU por hora | 3412,1416 BTU/h | Aires acondicionados y calderas |
| Pie-libra por segundo | 737,56215 ft·lbf/s | Potencia mecánica imperial |
| Kilocaloría por hora | 859,84523 kcal/h | Calefacción y tasa metabólica |
| Tonelada de refrigeración | 0,28434514 TR | Capacidad de enfriadoras y climatización (12.000 BTU/h) |
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 |
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 |
Preguntas frecuentes
What is 75 kW in hp?
75 kW is 100,58 hp (75 × 1,3410221).
What is 150 kW in hp?
150 kW is 201,15 hp (150 × 1,3410221).
What is the difference between hp and PS?
hp (mechanical horsepower) is 745.7 W; PS (metric horsepower, also CV or ch) is 735.5 W. 100 kW is 134.1 hp but 136.0 PS. EU registration documents list kW; brochures often list PS.
How many hp is a 3 kW electric motor?
3 kW × 1.34102 = 4.02 hp. Motor nameplates rate output (shaft) power, so input power from the supply is higher by the motor's efficiency.