Power converter
Kilowatts to Horsepower
Converting Kilowatts to Horsepower is a single multiplication when you know the factor. One kW equals 1.341022 hp, so multiply the value in kW by 1.341022. The calculator below works in both directions and accepts decimals.
Formula 1 kW = 1.341022 hp
Need the other direction? Horsepower to Kilowatts.
How to convert Kilowatts to Horsepower
A kilowatt is 1,000 watts and is common for appliances and EV charging. Mechanical horsepower is about 745.7 watts; metric horsepower is about 735.5 watts.
To convert Kilowatts to Horsepower, multiply the value in kW by 1.341022. For example, 10 kW × 1.341022 = 13.410221 hp. This works because the ratio between the two units is constant for every value in power.
Worked examples
| kW | hp |
|---|---|
| 1 kW | 1.341022 hp |
| 2.5 kW | 3.352555 hp |
| 5 kW | 6.70511 hp |
| 10 kW | 13.410221 hp |
| 25 kW | 33.525552 hp |
| 50 kW | 67.051104 hp |
| 100 kW | 134.102209 hp |
Reverse conversion
| hp | kW |
|---|---|
| 1 hp | 0.74569987 kW |
| 5 hp | 3.728499 kW |
| 10 hp | 7.456999 kW |
| 25 hp | 18.642497 kW |
| 50 hp | 37.284994 kW |
| 100 hp | 74.569987 kW |
When this conversion is useful
This is the calculation you need when you are comparing an engine, a generator or an appliance across standards. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 kW is 1,341.02 hp.
Is the conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
kW to hp conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| Kilowatts (kW) | Horsepower (hp) |
|---|---|
| 1 kW | 1.341022 hp |
| 2 kW | 2.682044 hp |
| 3 kW | 4.023066 hp |
| 4 kW | 5.364088 hp |
| 5 kW | 6.70511 hp |
| 6 kW | 8.046133 hp |
| 7 kW | 9.387155 hp |
| 8 kW | 10.728177 hp |
| 9 kW | 12.069199 hp |
| 10 kW | 13.410221 hp |
| 11 kW | 14.751243 hp |
| 12 kW | 16.092265 hp |
| 13 kW | 17.433287 hp |
| 14 kW | 18.774309 hp |
| 15 kW | 20.115331 hp |
| 16 kW | 21.456353 hp |
| 17 kW | 22.797376 hp |
| 18 kW | 24.138398 hp |
| 19 kW | 25.47942 hp |
| 20 kW | 26.820442 hp |
| 21 kW | 28.161464 hp |
| 22 kW | 29.502486 hp |
| 23 kW | 30.843508 hp |
| 24 kW | 32.18453 hp |
| 25 kW | 33.525552 hp |
| 26 kW | 34.866574 hp |
| 27 kW | 36.207596 hp |
| 28 kW | 37.548619 hp |
| 29 kW | 38.889641 hp |
| 30 kW | 40.230663 hp |
| 31 kW | 41.571685 hp |
| 32 kW | 42.912707 hp |
| 33 kW | 44.253729 hp |
| 34 kW | 45.594751 hp |
| 35 kW | 46.935773 hp |
| 36 kW | 48.276795 hp |
| 37 kW | 49.617817 hp |
| 38 kW | 50.958839 hp |
| 39 kW | 52.299861 hp |
| 40 kW | 53.640884 hp |
| 41 kW | 54.981906 hp |
| 42 kW | 56.322928 hp |
| 43 kW | 57.66395 hp |
| 44 kW | 59.004972 hp |
| 45 kW | 60.345994 hp |
| 46 kW | 61.687016 hp |
| 47 kW | 63.028038 hp |
| 48 kW | 64.36906 hp |
| 49 kW | 65.710082 hp |
| 50 kW | 67.051104 hp |
| 60 kW | 80.461325 hp |
| 70 kW | 93.871546 hp |
| 80 kW | 107.281767 hp |
| 90 kW | 120.691988 hp |
| 100 kW | 134.102209 hp |
Frequently asked questions
How many Horsepower are in 1 Kilowatts?
1 kW equals 1.341022 hp.
How do I convert Kilowatts to Horsepower?
Multiply the kW value by 1.341022. Example: 25 kW = 33.525552 hp.
What is 2.5 kW in hp?
2.5 kW = 3.352555 hp.
Is the kW to hp conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.