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Convert hp to kw

1 horsepower (mechanical) equals 0.74569987 kilowatts. Enter a value below to convert instantly.

1 hp
0.74569987 kW

Multiply the number of horsepower (mechanical) by 0.745699871582 to get kilowatts. How this is calculated

Copy link puts your number after the #, which browsers never send to a server — but the link itself carries it, so anyone you send it to sees the value. Save keeps the unit pair in this browser only; clear it any time from your saved list.

Need the other direction? Convert kilowatt to horsepower (mechanical) →

Formula

Multiply the number of horsepower (mechanical) by 0.745699871582 to get kilowatts.

Step by step

  1. Start with 1 hp.
  2. Multiply by the conversion factor 0.745699871582.
  3. 1 × 0.745699871582 = 0.74569987 kW.

Horsepower (mechanical) to Kilowatts conversion table

Horsepower (mechanical) (hp) Kilowatts (kW)
1 0.74569987
2 1.4913997
5 3.7284994
10 7.4569987
20 14.913997
50 37.284994
100 74.569987
500 372.84994
1,000 745.69987

Convert Horsepower (mechanical) to other power units

1 hp expressed in every other power unit on this site.

  • Watt W 745.69987
  • Kilowatt kW 0.74569987
  • Megawatt MW 0.00074569987
  • Gigawatt GW 7.4569987e-7
  • Terawatt TW 7.4569987e-10
  • Milliwatt mW 745,699.87
  • Microwatt µW 745,699,870
  • Nanowatt nW 745,699,870,000
  • Picowatt pW 745,699,870,000,000
  • Femtowatt fW 7.4569987e+17
  • Attowatt aW 7.4569987e+20
  • Centiwatt cW 74,569.987
  • Deciwatt dW 7,456.9987
  • Dekawatt daW 74.569987
  • Hectowatt hW 7.4569987
  • Petawatt PW 7.4569987e-13
  • Exawatt EW 7.4569987e-16
  • Volt-ampere VA 745.69987
  • Kilovolt-ampere kVA 0.74569987
  • Joule per Second J/s 745.69987
  • Kilojoule per Second kJ/s 0.74569987
  • Joule per Hour J/h 2,684,519.5
  • Megajoule per Second MJ/s 0.00074569987
  • Gigajoule per Second GJ/s 7.4569987e-7
  • Terajoule per Second TJ/s 7.4569987e-10
  • Petajoule per Second PJ/s 7.4569987e-13
  • Exajoule per Second EJ/s 7.4569987e-16
  • Hectojoule per Second hJ/s 7.4569987
  • Dekajoule per Second daJ/s 74.569987
  • Decijoule per Second dJ/s 7,456.9987
  • Centijoule per Second cJ/s 74,569.987
  • Millijoule per Second mJ/s 745,699.87
  • Microjoule per Second µJ/s 745,699,870
  • Nanojoule per Second nJ/s 745,699,870,000
  • Picojoule per Second pJ/s 745,699,870,000,000
  • Femtojoule per Second fJ/s 7.4569987e+17
  • Attojoule per Second aJ/s 7.4569987e+20
  • Joule per Minute J/min 44,741.992
  • Kilojoule per Hour kJ/h 2,684.5195
  • Kilojoule per Minute kJ/min 44.741992
  • Erg per Second erg/s 7,456,998,700
  • Horsepower (metric) PS 1.0138697
  • Horsepower (electric) hp(E) 0.99959768
  • Horsepower (boiler) hp(S) 0.076018133
  • Horsepower (water) hp(water) 0.99954007
  • BTU per Hour BTU/h 2,544.4336
  • BTU per Minute BTU/min 42.407226
  • BTU per Second BTU/s 0.7067871
  • MBTU per Hour MBTU/h 2.5444336
  • MMBTU per Hour MMBTU/h 0.0025444336
  • Ton of Refrigeration RT 0.21203613
  • Calorie (th) per Second cal(th)/s 178.22655
  • Kilocalorie (th) per Hour kcal(th)/h 641.61557
  • Kilocalorie (th) per Minute kcal(th)/min 10.693593
  • Kilocalorie (th) per Second kcal(th)/s 0.17822655
  • Calorie (th) per Hour cal(th)/h 641,615.57
  • Calorie (th) per Minute cal(th)/min 10,693.593
  • Calorie (IT) per Second cal(IT)/s 178.10735
  • Calorie (IT) per Minute cal(IT)/min 10,686.441
  • Calorie (IT) per Hour cal(IT)/h 641,186.48
  • Kilocalorie (IT) per Second kcal(IT)/s 0.17810735
  • Kilocalorie (IT) per Minute kcal(IT)/min 10.686441
  • Kilocalorie (IT) per Hour kcal(IT)/h 641.18648
  • BTU (th) per Hour BTU(th)/h 2,546.1364
  • BTU (th) per Minute BTU(th)/min 42.435606
  • BTU (th) per Second BTU(th)/s 0.7072601
  • Foot-pound per Second ft·lbf/s 550
  • Foot-pound per Minute ft·lbf/min 33,000
  • Foot-pound per Hour ft·lbf/h 1,980,000
  • Kilogram-force Meter per Second kgf·m/s 76.040225
  • Poundal-foot per Second pdl·ft/s 17,695.727

About the horsepower (mechanical)

The horsepower (mechanical) (hp) is a Imperial unit of power. 550 foot-pounds-force per second — the standard hp used in the US and UK.

About the kilowatt

The kilowatt (kW) is a SI unit of power.

Where this conversion is used

Converting horsepower (mechanical) to kilowatts comes up when engines, appliances, solar panels, and HVAC sizing.

Related conversions

Frequently asked questions

How many kilowatts are in a horsepower (mechanical)?

One horsepower (mechanical) equals 0.74569987 kilowatts.

How do you convert horsepower (mechanical) to kilowatts?

Multiply the number of horsepower (mechanical) by 0.745699871582 to get kilowatts.

What is 1 kilowatt in horsepower (mechanical)?

One kilowatt equals 1.3410221 horsepower (mechanical).

When would I convert horsepower (mechanical) to kilowatts?

This conversion is common when engines, appliances, solar panels, and HVAC sizing.

Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.