Horsepower to kW Converter
Quick answer: To convert horsepower to kW, multiply by 0.7456999. For example, 10 hp is 7.456999 kW. One horsepower equals 0.7456999 kW.
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Use the Horsepower to kW Converter
Horsepower to kW formula and what each symbol means
kW = hp × 0.7456999
| Symbol | Meaning |
|---|---|
| hp | Horsepower |
| kW | Kilowatt |
Horsepower to kW examples
1 hp
1 hp × 0.7456999 = 0.7456999 kW.
10 hp
10 hp × 0.7456999 = 7.456999 kW.
100 hp
100 hp × 0.7456999 = 74.56999 kW.
Horsepower compared with kW
One kW is 1.341 times as large as one hp, so your number gets smaller when you convert horsepower to kW and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About horsepower and kW
Horsepower (hp): Mechanical horsepower, about 745.7 watts. Kilowatt (kW): 1,000 watts.
Where horsepower to kW conversions are used
Appliances and chargers list their draw in watts, while air conditioners may quote BTU per hour. Power stations and the grid are described in megawatts and gigawatts.
How to calculate Horsepower to kW step by step
- Enter the value in hp (the starting unit).
- Multiply by 0.7456999, because 1 hp = 0.7456999 kW.
- The product is the value in kW. To go back, divide by 0.7456999 or multiply by 1.341022.
Popular power conversions
How to read your Horsepower to kW result
Quick estimate: multiply by about 0.75 to get kW from horsepower; this is within 0.6% of the exact factor. One watt is one joule per second.
| HORSEPOWER | KW |
|---|---|
| 1 | 0.7456999 |
| 2 | 1.4914 |
| 5 | 3.728499 |
| 10 | 7.456999 |
| 20 | 14.914 |
| 50 | 37.28499 |
| 100 | 74.56999 |
| 1,000 | 745.6999 |
kW to Horsepower: quick table
| KW | HORSEPOWER |
|---|---|
| 1 | 1.341022 |
| 5 | 6.70511 |
| 10 | 13.41022 |
| 25 | 33.52555 |
| 50 | 67.0511 |
| 100 | 134.1022 |
| 250 | 335.2555 |
| 500 | 670.511 |
Common mistakes when calculating Horsepower to kW
- Mixing kW (power) with kWh (energy).
- Dividing when you should multiply: from hp to kW multiply by 0.7456999; from kW to hp divide by 0.7456999.
Horsepower to kW FAQ
How many kW are in 1 hp?
1 hp equals 0.7456999 kW.
How many hp are in 1 kW?
1 kW equals 1.341022 hp.
Is 1 hp = 0.7456999 kW an exact conversion?
The factor is shown rounded to 7 significant figures (0.7456999). The calculator above uses more digits.
What is a horsepower (hp)?
Mechanical horsepower, about 745.7 watts.
How can I estimate horsepower to kW in my head?
Quick estimate: multiply by about 0.75 to get kW from horsepower; this is within 0.6% of the exact factor.
What is 40 hp in kW?
40 hp = 29.82799 kW (since 40 × 0.7456999).
What is 200 hp in kW?
200 hp = 149.14 kW (since 200 × 0.7456999).
What is 3 hp in kW?
3 hp = 2.2371 kW (since 3 × 0.7456999).
How many decimals should I keep when converting hp to kW?
Match the precision of your original measurement. For example, 7.456999 kW rounds to 7.46 kW at 3 significant figures; keep more digits only for engineering or scientific work.
More in Power converters
- Horsepower to Watts Converter
- BTU per Hour to PS Converter
- kW to BTU per Hour Converter
- BTU per Hour to MW Converter
- BTU per Hour to kW Converter
- kW to MW Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors