Come Converti Kilowatts

A Cavalli Vapore, BTU/hr, e More

Get il Formulas

A 10 kW electric motor, un 13.4 hp engine, e un 34,100 BTU/hr heater all produce il same power. Convertendo tra these units e essential per comparing equipment, sizing systems, e comprendere specifications across different industries.

Step-da-Step Conversions

Kilowatts un Cavalli Vapore

  1. Find your power in kilowatts (e.g., 75 kW)
  2. Multiply da 1.341
  3. Risultato: 75 × 1.341 = 100.6 hp

Cavalli Vapore un Kilowatts

  1. Find your power in cavalli vapore (e.g., 200 hp)
  2. Divide da 1.341 (o multiply da 0.746)
  3. Risultato: 200 ÷ 1.341 = 149.2 kW

Kilowatts un BTU/ora

  1. Find your power in kilowatts (e.g., 5 kW)
  2. Multiply da 3,412
  3. Risultato: 5 × 3,412 = 17,060 BTU/hr

Comprehensive Conversione Table

kWWatthp (mech)PS (metric)BTU/hr
0.55000.670.681,706
11,0001.341.363,412
22,0002.682.726,824
55,0006.716.8017,060
1010,00013.4113.6034,120
2525,00033.5333.9985,300
5050,00067.0567.98170,600
100100,000134.10135.96341,200

Comuni Applicazioni

Electric Motors

Motors often list both kW e hp:

Motor SizekWhp
Small pump0.370.5
Fan motor0.751
Industrial pump7.510
Compressor2230
Large industrial75100

HVAC Systems

Heating/cooling capacity often uses BTU/hr o tons:

  • 1 ton di cooling = 12,000 BTU/hr = 3.52 kW
  • Residential AC: 2-5 tons (7-17.5 kW)
  • Space heater: 1-2 kW (3,400-6,800 BTU/hr)

Power vs Energy

Don't confuse power (kW) con energy (kWh):

  • Power (kW): Rate di energy usare
  • Energy (kWh): Total energy consumed over time

Energy = Power × Time

Esempio: A 2 kW heater running per 3 ore uses 6 kWh di energy.

Electricity Cost

Utility bills charge per energy (kWh), not power (kW). A 1 kW device costs il same per ora whether it's un 1 kW heater o ten 100W bulbs.

Regional Variations

RegionPower UnitaApplication
US/UKhp (mechanical)Vehicles, motors
EuropekW, PSVehicles, appliances
JapankW, PSMixed usage
HVAC (US)BTU/hr, tonsHeating/cooling
HVAC (intl)kWHeating/cooling
ScientificW, kWAll applications

Conclusione

Convertendo kilowatts requires different factors per different target units: ×1.341 per cavalli vapore, ×1.360 per metric cavalli vapore (PS), e ×3,412 per BTU/ora. Il kilowatt e il universal scientific unit, while cavalli vapore dominates automotive applications e BTU/ora e standard per HVAC in il US. Comprendere these conversioni helps compare equipment across different specification systems.

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