Convert Horsepower (HP) to Kilowatts (kW)
1 HP = 0.746 kW
Converting horsepower to kilowatts is essential for understanding engine power in different units. The conversion factor is 1 HP = 0.7457 kW, making it easier to compare power ratings across various applications.
0.7457
≈ 3/4 kW
Formula: kW = HP × 0.7457
Conversion Formula
kW = HP × 0.7457
Reverse: HP = kW × 1.34102
Quick mental math: To quickly estimate kilowatts from horsepower, you can divide the HP value by 1.34.
Conversion Examples
1 HP × 0.7457 =
0.746 kW
1 Horsepower = 0.746 Kilowatts
5 HP × 0.7457 =
3.729 kW
5 Horsepower = 3.729 Kilowatts
10 HP × 0.7457 =
7.457 kW
10 Horsepower = 7.457 Kilowatts
25 HP × 0.7457 =
18.643 kW
25 Horsepower = 18.643 Kilowatts
50 HP × 0.7457 =
37.285 kW
50 Horsepower = 37.285 Kilowatts
100 HP × 0.7457 =
74.57 kW
100 Horsepower = 74.57 Kilowatts
Horsepower to Kilowatt Table
HP =—kW
| Horsepower (HP) | Kilowatt (kW) | Fraction |
|---|---|---|
| 1 | 0.7457 | 3/4 |
| 6 | 4.4742 | 4 15/32 |
| 11 | 8.2027 | 8 13/64 |
| 16 | 11.9312 | 11 15/16 |
| 21 | 15.6597 | 15 21/32 |
| 26 | 19.3882 | 19 25/64 |
| 31 | 23.1167 | 23 7/64 |
| 36 | 26.8452 | 26 27/32 |
| 41 | 30.5737 | 30 37/64 |
| 46 | 34.3022 | 34 19/64 |
| 51 | 38.0307 | 38 1/32 |
| 56 | 41.7592 | 41 49/64 |
| 61 | 45.4877 | 45 31/64 |
| 66 | 49.2162 | 49 7/32 |
| 71 | 52.9447 | 52 15/16 |
| 76 | 56.6732 | 56 43/64 |
| 81 | 60.4017 | 60 13/32 |
| 86 | 64.1302 | 64 1/8 |
| 91 | 67.8587 | 67 55/64 |
| 96 | 71.5872 | 71 19/32 |
Unit Definitions
What is a Horsepower (HP)?
ImperialUnited States, United Kingdom
Horsepower (HP) is a unit of measurement for power, commonly used to measure the output of engines and motors.
History
The term horsepower was coined by James Watt in the late 18th century to compare the output of steam engines with draft horses. It has since become a standard unit in automotive and mechanical engineering.
Current Use
Today, horsepower is widely used in the automotive industry and other mechanical applications, allowing consumers to gauge the performance of engines.
What is a Kilowatt (kW)?
Metric (SI)Worldwide
Kilowatt (kW) is a unit of power equal to one thousand watts, used to measure electrical energy output and consumption.
History
The kilowatt was established as a standard unit of power in the late 19th century as electrical systems began to proliferate. It is derived from the watt, which is named after James Watt.
Current Use
Kilowatts are commonly used in electrical contexts, from household appliances to large-scale power generation, making it essential for understanding energy consumption and efficiency.
Frequently Asked Questions
How do I convert 200 HP to kW?
To convert 200 HP to kilowatts, you would multiply by the conversion factor of 0.7457. Thus, 200 HP is equal to 200 x 0.7457, which equals 149.14 kW. This is particularly useful when evaluating the power of a vehicle engine or industrial machine, giving you a clear idea of its energy output.
What is the power requirement for a typical construction site?
A typical construction site may require equipment with power ratings of around 100 HP. When converted to kilowatts, this means the site would need approximately 74.57 kW of electrical power to operate machinery like excavators and cranes efficiently. Understanding this conversion helps in ensuring that the power supply matches the machinery requirements.
Can you provide an example of how HP relates to fitness equipment?
When looking at a treadmill, a model rated at 3 HP translates to about 2.24 kW. This means the treadmill is capable of delivering a robust performance suitable for users who require high-intensity workouts. Knowing the kilowatt equivalent helps in understanding the energy consumption and efficiency of the equipment.
How does horsepower convert for electric cars?
Electric cars often list their power in kilowatts, but for comparison, a vehicle with 150 HP would have an equivalent power of around 111.85 kW. This conversion is essential for buyers who want to compare performance with traditional gasoline-powered vehicles, allowing for more informed decisions about energy use and efficiency.
Is there a difference in measuring power for home appliances?
Home appliances like air conditioners may be rated in horsepower. For instance, a 1.5 HP air conditioner would equal approximately 1.12 kW. Understanding this conversion helps homeowners estimate energy costs, as most energy bills are calculated in kilowatt-hours, making it essential to know the power consumption of appliances.
Popular Power Conversions
Watt to KilowattW → kWWatt to MegawattW → MWWatt to GigawattW → GWWatt to HorsepowerW → HPWatt to Metric HorsepowerW → PSWatt to BTU per HourW → BTU/hWatt to Kilovolt-AmpereW → kVAWatt to Ton of RefrigerationW → TRWatt to MilliwattW → mWKilowatt to WattkW → WKilowatt to MegawattkW → MWKilowatt to GigawattkW → GWKilowatt to HorsepowerkW → HPKilowatt to Metric HorsepowerkW → PSKilowatt to BTU per HourkW → BTU/hKilowatt to Kilovolt-AmperekW → kVAKilowatt to Ton of RefrigerationkW → TRKilowatt to MilliwattkW → mWMegawatt to WattMW → WMegawatt to KilowattMW → kWMegawatt to GigawattMW → GWMegawatt to HorsepowerMW → HPMegawatt to Metric HorsepowerMW → PSMegawatt to BTU per HourMW → BTU/hMegawatt to Kilovolt-AmpereMW → kVAMegawatt to Ton of RefrigerationMW → TRMegawatt to MilliwattMW → mWGigawatt to WattGW → WGigawatt to KilowattGW → kWGigawatt to MegawattGW → MWGigawatt to HorsepowerGW → HPGigawatt to Metric HorsepowerGW → PSGigawatt to BTU per HourGW → BTU/hGigawatt to Kilovolt-AmpereGW → kVAGigawatt to Ton of RefrigerationGW → TRGigawatt to MilliwattGW → mWHorsepower to WattHP → WHorsepower to MegawattHP → MWHorsepower to GigawattHP → GWHorsepower to Metric HorsepowerHP → PSHorsepower to BTU per HourHP → BTU/hHorsepower to Kilovolt-AmpereHP → kVAHorsepower to Ton of RefrigerationHP → TRHorsepower to MilliwattHP → mWMetric Horsepower to WattPS → WMetric Horsepower to KilowattPS → kWMetric Horsepower to MegawattPS → MWMetric Horsepower to GigawattPS → GWMetric Horsepower to HorsepowerPS → HPMetric Horsepower to BTU per HourPS → BTU/hMetric Horsepower to Kilovolt-AmperePS → kVAMetric Horsepower to Ton of RefrigerationPS → TRMetric Horsepower to MilliwattPS → mWBTU per Hour to WattBTU/h → WBTU per Hour to KilowattBTU/h → kWBTU per Hour to MegawattBTU/h → MWBTU per Hour to GigawattBTU/h → GWBTU per Hour to HorsepowerBTU/h → HPBTU per Hour to Metric HorsepowerBTU/h → PSBTU per Hour to Kilovolt-AmpereBTU/h → kVABTU per Hour to Ton of RefrigerationBTU/h → TRBTU per Hour to MilliwattBTU/h → mWKilovolt-Ampere to WattkVA → WKilovolt-Ampere to KilowattkVA → kWKilovolt-Ampere to MegawattkVA → MWKilovolt-Ampere to GigawattkVA → GWKilovolt-Ampere to HorsepowerkVA → HPKilovolt-Ampere to Metric HorsepowerkVA → PSKilovolt-Ampere to BTU per HourkVA → BTU/hKilovolt-Ampere to Ton of RefrigerationkVA → TRKilovolt-Ampere to MilliwattkVA → mWTon of Refrigeration to WattTR → WTon of Refrigeration to KilowattTR → kWTon of Refrigeration to MegawattTR → MWTon of Refrigeration to GigawattTR → GWTon of Refrigeration to HorsepowerTR → HPTon of Refrigeration to Metric HorsepowerTR → PSTon of Refrigeration to BTU per HourTR → BTU/hTon of Refrigeration to Kilovolt-AmpereTR → kVATon of Refrigeration to MilliwattTR → mWMilliwatt to WattmW → WMilliwatt to KilowattmW → kWMilliwatt to MegawattmW → MWMilliwatt to GigawattmW → GWMilliwatt to HorsepowermW → HPMilliwatt to Metric HorsepowermW → PSMilliwatt to BTU per HourmW → BTU/hMilliwatt to Kilovolt-AmperemW → kVAMilliwatt to Ton of RefrigerationmW → TR
Convert Horsepower to Other Units
Horsepower to Watt→ WHorsepower to Kilowatt→ kWHorsepower to Megawatt→ MWHorsepower to Gigawatt→ GWHorsepower to Watt→ WHorsepower to Megawatt→ MWHorsepower to Gigawatt→ GWHorsepower to Metric Horsepower→ PSHorsepower to BTU per Hour→ BTU/hHorsepower to Kilovolt-Ampere→ kVAHorsepower to Ton of Refrigeration→ TRHorsepower to Milliwatt→ mWHorsepower to Metric Horsepower→ PSHorsepower to BTU per Hour→ BTU/hHorsepower to Kilovolt-Ampere→ kVAHorsepower to Ton of Refrigeration→ TRHorsepower to Milliwatt→ mW