Conversor de potencia

Convierta hp a kW, kW a hp, vatios a caballos y BTU/h a toneladas de refrigeración, con caballos mecánicos (745.7 W) y métricos (735.5 W).

Actualizado 29 de septiembre de 2026Ejemplos verificados: 5

Valor convertido

Cifras significativas: 12; Al más cercano; empates alejándose de cero

Conversión: 100 hp ≈ 74.56999 kW
Factor de conversión: 0.745699871582
Exactitud: Exacto

100 hp equivale aproximadamente a 74.56999 kW (exactamente 74.569987158227022 kW). Una unidad de caballo de potencia mecánico equivale aproximadamente a 0.7456999 kW.

La misma cantidad expresada en cada unidad

100 hp en cada unidad de Potencia Filas: 10

Unidad	Valor	Definición
watt (W)	74,569.99	Unidad base
milliwatt (mW)	74,569,990	1 mW = 0.001 W, exacto
kilovatio (kW)	74.56999	1 kW = 1,000 W, exacto
megawatt (MW)	0.07456999	1 MW = 1,000,000 W, exacto
gigawatt (GW)	0.00007456999	1 GW = 1,000,000,000 W, exacto
caballo de potencia mecánico (hp)	100	1 hp = 745.69987158227022 W, exacto (Caballo de fuerza mecánico (550 ft·lbf/s))
metric horsepower (PS)	101.387	1 PS = 735.49875 W, exacto
BTU per hour (BTU/h)	254,443.4	1 BTU/h = 1,055.05585262/3,600 W, exacto
ton of refrigeration (TR)	21.20361	1 TR = 12,660,670.23144/3,600 W, exacto
kilocalorie per hour (kcal/h)	64,161.56	1 kcal/h = 4,184/3,600 W, exacto

Cómo se calcula S

Convertir caballo de potencia mecánico a watt
$100\ \text{hp} \times 745.69987158227022\ \tfrac{\text{W}}{\text{hp}} = 74{,}569.9871582\ \text{W}$
1 hp = 745.69987158227022 W, exacto (Caballo de fuerza mecánico (550 ft·lbf/s))
Convertir watt a kilovatio
$74{,}569.9871582\ \text{W} \div 1{,}000\ \tfrac{\text{W}}{\text{kW}} = 74.5699871582\ \text{kW}$
1 kW = 1,000 W, exacto
Factor combinado
$1\ \text{hp} = \frac{745.69987158227022}{1{,}000}\ \text{kW} \approx 0.745699871582\ \text{kW}$
Ambas unidades tienen definiciones exactas y el valor convertido es un decimal finito, por lo que todos los dígitos mostrados son exactos.

Acerca de Conversor de potencia

Every power unit is a fixed number of watts (joules per second). Mechanical horsepower is 550 foot-pounds-force per second, which works out at exactly 745.69987158227022 W; metric horsepower (PS) is 75 kilogram-force metres per second, exactly 735.49875 W. A ton of refrigeration is 12,000 BTU/h, about 3.517 kW.

The default converts a 100 hp engine to 74.57 kW. Car specifications are the usual reason: European registration documents give engine power in kW while brochures quote PS or hp, and 100 kW is 134.1 hp or 136.0 PS.

Air-conditioner ratings in BTU/h or tons describe cooling output, not the electricity drawn: a 1.5-ton unit moves 18,000 BTU/h (5.28 kW) of heat, and its electrical input depends on its efficiency rating.

Ejemplos resueltos

100 hp in kW

Valor: 100 hp
De: horsepower (hp)
A: kilowatt (kW)

Valor convertido: 74.5699871582 kW
Exactitud: Exacto

Fuente de comprobación: 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B)

1 kW in hp

Valor: 1 kW
De: kilowatt (kW)
A: horsepower (hp)

Valor convertido: 1.3410220896 hp

Fuente de comprobación: 1000 / 745.69987158227022 (Python 3.8 fractions from the legal definitions)

12,000 BTU/h is one ton of refrigeration

Valor: 12,000 BTU/h
De: BTU per hour (BTU/h)
A: ton of refrigeration (TR)

Valor convertido: 1 TR

Fuente de comprobación: 1 ton of refrigeration = 12,000 BTU/h (NIST SP 811 App. B)

Zero power

Valor: 0 W
De: watt (W)
A: horsepower (hp)

Valor convertido: 0 hp
Exactitud: Exacto

Fuente de comprobación: 0 × any factor = 0

Preguntas

How many watts are in a horsepower?

745.7 W for mechanical horsepower (550 ft·lbf/s), 735.5 W for metric horsepower (PS or CV), and exactly 746 W for the electric horsepower used to rate electric motors; NIST SP 811 lists all three. Mechanical and metric horsepower differ by 1.4%, enough to matter when comparing car figures.

How do I convert kW to hp?

Multiply by 1.34102 for mechanical horsepower or by 1.35962 for metric PS. A 150 kW engine is 201.2 hp or 203.9 PS. To go from hp to kW, multiply by 0.7457, so the default 100 hp is 74.57 kW.

What is the difference between hp, bhp and PS?

hp and bhp use the same 745.7 W unit; “brake” horsepower means the power was measured at the engine's output shaft, before transmission losses. PS (Pferdestärke) is metric horsepower, 735.5 W, also written CV or ch. A car quoted at 150 PS makes 147.9 hp or 110.3 kW.

What does a 1.5-ton air conditioner mean?

It removes 18,000 BTU of heat per hour, which is 5.28 kW of cooling. A ton of refrigeration is 12,000 BTU/h, the rate that melts one short ton (2,000 lb) of ice in 24 hours, because ice absorbs 144 BTU per pound as it melts. The electricity it draws is lower and depends on its efficiency rating.

How many BTU/h is 1 kW?

3,412.14 BTU/h. One watt is 3.41214 BTU/h, so a 2 kW electric heater gives out 6,824 BTU/h, and a 12,000 BTU/h air conditioner is rated at 3.517 kW of cooling. The factor is the same as between kWh and BTU because both sides are divided by one hour.

¿Qué precisión tiene «Conversor de potencia»?

La precisión depende de tus datos y de los supuestos del método. El cálculo decimal usa 50 cifras significativas, pero las estimaciones, los métodos numéricos y los datos de origen pueden ser menos precisos; el redondeo mostrado no elimina esos límites. Ejemplos resueltos comprobados con fuentes independientes: 5. Por ejemplo, «100 hp in kW» se comprueba con 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B).

¿De dónde procede el método?

NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors; NIST Handbook 44, Appendix C — General tables of units of measurement.

Acerca de esta calculadora

\begin{gathered} x_{\text{to}} = x_{\text{from}} \times \dfrac{f_{\text{from}}}{f_{\text{to}}} \\ f = \text{one unit expressed in } \text{W} \end{gathered}

Fuentes

Verificado con las referencias

Esta calculadora incluye 5 ejemplos resueltos con respuestas de fuentes independientes. Forman parte del conjunto de pruebas y también puedes ejecutarlos aquí.