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Power and Energy

hptokW

Convert mechanical horsepower (hp) to kilowatts (kW).

Factor1 hp = 0.7456999 kW

Converter

hp

Accepts numbers or expressions, e.g. 150 + 14.7

Result
37.285kW

Rendered to 6 significant figures.

Formula

Formula
kW = hp × 0.7456999

Multiply any value in mechanical horsepower by 0.7456999 to obtain the value in kilowatts.

Worked example

Convert 50 hp to kW.

  1. 01Start with 50 hp.
  2. 02Multiply by the conversion factor: 50 × 0.7456999 = 37.285 kW.
Result50 hp = 37.285 kW

Conversion table

hpkW
10.7457
21.4914
53.7285
107.457
2014.914
5037.285
10074.57
200149.14
500372.85
1000745.7

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from hp to kW?
1 hp equals 0.7456999 kW. To convert, multiply the value in mechanical horsepower by 0.7456999.
How do I convert 1 hp to kW?
1 hp = 0.7457 kW. For any value, multiply by 0.7456999.
How do I convert kW back to hp?
Divide by the same factor — or equivalently, multiply by 1.341022. So 1 kW = 1.34102 hp.
When would I need to convert mechanical horsepower to kilowatt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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