100 hp in kW
- Valor
- 100 hp
- De
- horsepower (hp)
- Para
- kilowatt (kW)
- Valor convertido
- 74.5699871582 kW
- Exatidão
- Exato
Fonte de verificação: 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B)
Converta hp para kW, kW para hp, watts para horsepower e BTU/h para toneladas de refrigeração, com cavalos mecânicos (745.7 W) e métricos (735.5 W).
Atualizado Exemplos verificados: 5
100 hp equivale a cerca de 74.56999 kW (exatamente 74.569987158227022 kW). Uma unidade de horsepower mecânico equivale a cerca de 0.7456999 kW.
| Unidade | Valor | Definição |
|---|---|---|
| watt (W) | 74,569.99 | Unidade base |
| milliwatt (mW) | 74,569,990 | 1 mW = 0.001 W, exato |
| quilowatt (kW) | 74.56999 | 1 kW = 1,000 W, exato |
| megawatt (MW) | 0.07456999 | 1 MW = 1,000,000 W, exato |
| gigawatt (GW) | 0.00007456999 | 1 GW = 1,000,000,000 W, exato |
| horsepower mecânico (hp) | 100 | 1 hp = 745.69987158227022 W, exato (Cavalo-vapor mecânico (550 ft·lbf/s)) |
| metric horsepower (PS) | 101.387 | 1 PS = 735.49875 W, exato |
| BTU per hour (BTU/h) | 254,443.4 | 1 BTU/h = 1,055.05585262/3,600 W, exato |
| ton of refrigeration (TR) | 21.20361 | 1 TR = 12,660,670.23144/3,600 W, exato |
| kilocalorie per hour (kcal/h) | 64,161.56 | 1 kcal/h = 4,184/3,600 W, exato |
1 hp = 745.69987158227022 W, exato (Cavalo-vapor mecânico (550 ft·lbf/s))
1 kW = 1,000 W, exato
As duas unidades têm definições exatas e o valor convertido é um decimal finito; portanto, todos os dígitos exibidos são exatos.
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.
Fonte de verificação: 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B)
Fonte de verificação: 1000 / 745.69987158227022 (Python 3.8 fractions from the legal definitions)
Fonte de verificação: 1 ton of refrigeration = 12,000 BTU/h (NIST SP 811 App. B)
Fonte de verificação: 0 × any factor = 0
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.
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.
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.
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.
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.
A precisão depende dos dados inseridos e das hipóteses do método. O cálculo decimal usa 50 algarismos significativos, mas estimativas, métodos numéricos e dados de origem podem ter menor precisão; o arredondamento exibido não elimina essas limitações. Exemplos resolvidos verificados com fontes independentes: 5. Por exemplo, “100 hp in kW” é verificado com 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B).
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.
Esta calculadora inclui 5 exemplos resolvidos com respostas de fontes independentes. Eles fazem parte do conjunto de testes e você também pode executá-los aqui.
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