100 hp in kW
- Valore
- 100 hp
- Da
- horsepower (hp)
- A
- kilowatt (kW)
- Valore convertito
- 74.5699871582 kW
- Esattezza
- Esatto
Fonte di verifica: 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B)
Converti hp in kW, kW in hp, watt in cavalli e BTU/h in tonnellate di refrigerazione, distinguendo il cavallo meccanico (745.7 W) da quello metrico (735.5 W).
Aggiornato Esempi verificati: 5
100 hp equivale a circa 74.56999 kW (esattamente 74.569987158227022 kW). Un’unità di cavallo meccanico equivale a circa 0.7456999 kW.
| Unità | Valore | Definizione |
|---|---|---|
| watt (W) | 74,569.99 | Unità di base |
| milliwatt (mW) | 74,569,990 | 1 mW = 0.001 W, esatto |
| chilowatt (kW) | 74.56999 | 1 kW = 1,000 W, esatto |
| megawatt (MW) | 0.07456999 | 1 MW = 1,000,000 W, esatto |
| gigawatt (GW) | 0.00007456999 | 1 GW = 1,000,000,000 W, esatto |
| cavallo meccanico (hp) | 100 | 1 hp = 745.69987158227022 W, esatto (Cavallo meccanico (550 ft·lbf/s)) |
| metric horsepower (PS) | 101.387 | 1 PS = 735.49875 W, esatto |
| BTU per hour (BTU/h) | 254,443.4 | 1 BTU/h = 1,055.05585262/3,600 W, esatto |
| ton of refrigeration (TR) | 21.20361 | 1 TR = 12,660,670.23144/3,600 W, esatto |
| kilocalorie per hour (kcal/h) | 64,161.56 | 1 kcal/h = 4,184/3,600 W, esatto |
1 hp = 745.69987158227022 W, esatto (Cavallo meccanico (550 ft·lbf/s))
1 kW = 1,000 W, esatto
Entrambe le unità sono definite esattamente e il valore convertito è un decimale finito, quindi ogni cifra mostrata è esatta.
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 di verifica: 1 hp = 550 ft·lbf/s = 550 × 0.3048 × 4.4482216152605 W = 745.69987158227022 W (NIST SP 811 App. B)
Fonte di verifica: 1000 / 745.69987158227022 (Python 3.8 fractions from the legal definitions)
Fonte di verifica: 1 ton of refrigeration = 12,000 BTU/h (NIST SP 811 App. B)
Fonte di verifica: 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.
La precisione dipende dai dati inseriti e dalle ipotesi del metodo. Il calcolo decimale usa 50 cifre significative, ma stime, metodi numerici e dati di origine possono essere meno precisi; l’arrotondamento visualizzato non elimina questi limiti. Esempi svolti verificati con fonti indipendenti: 5. Per esempio, «100 hp in kW» viene verificato con 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.
Questa calcolatrice include 5 esempi svolti con risposte da fonti indipendenti. Fanno parte della suite di test e puoi eseguirli anche qui.
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