Quick answer: 1 Watt in Horsepower (hp)
1 W equals 0.00134102 hp. To convert Watt to Horsepower (hp), multiply by 0.00134102 using the free calculator above — no signup needed.
Power units
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About Power Converter
The Power Converter converts between 4 different units, including Watt, Kilowatt, Megawatt, Horsepower (hp). The base unit is the Watt, and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Watt = 0.001 Kilowatt, 0.000001 Megawatt, 0.00134102 Horsepower (hp).
Scale of this category: the smallest unit is the Watt (W) and the largest is the Megawatt (MW).
Last updated: 2026-09-15
Power conversion factors
| Unit | Symbol | Value in Watt |
|---|---|---|
| Watt | W | 1 W = 1 W |
| Kilowatt | kW | 1 kW = 1000 W |
| Megawatt | MW | 1 MW = 1000000 W |
| Horsepower (hp) | hp | 1 hp = 745.699872 W |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 Watt in Horsepower (hp)?
- Multiply 1 by the conversion factor 0.00134102
- 1 Watt = 0.00134102 Horsepower (hp)
How much is 100 Watt in Horsepower (hp)?
- Multiply 100 by the conversion factor 0.00134102
- 100 Watt = 0.134102 Horsepower (hp)
How much is 1000 Watt in Horsepower (hp)?
- Multiply 1000 by the conversion factor 0.00134102
- 1000 Watt = 1.341022 Horsepower (hp)
Quick Conversion Reference Table
| Watt (W) | Horsepower (hp) (hp) |
|---|---|
| 1 W (Watt) | 0.00134102 hp (Horsepower (hp)) |
| 2 W (Watt) | 0.00268204 hp (Horsepower (hp)) |
| 5 W (Watt) | 0.00670511 hp (Horsepower (hp)) |
| 10 W (Watt) | 0.0134102 hp (Horsepower (hp)) |
| 20 W (Watt) | 0.0268204 hp (Horsepower (hp)) |
| 50 W (Watt) | 0.0670511 hp (Horsepower (hp)) |
| 100 W (Watt) | 0.134102 hp (Horsepower (hp)) |
| 500 W (Watt) | 0.670511 hp (Horsepower (hp)) |
| 1000 W (Watt) | 1.341022 hp (Horsepower (hp)) |
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How to Use This Converter
- Enter your value
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FAQ
How much is 1 Watt in Horsepower (hp)?
1 Watt = 0.00134102 Horsepower (hp).
How do I convert Watt to Horsepower (hp)?
Enter your value in Watt into the converter above and the result in Horsepower (hp) appears instantly. 1 W equals 0.00134102 hp — just multiply your value by 0.00134102.
What is the formula for Watt to Horsepower (hp)?
The formula is: value in Horsepower (hp) = value in Watt × 0.00134102. For example, 100 W × 0.00134102 = 0.134102 hp.
Is this Watt to Horsepower (hp) converter free and accurate?
Yes. This Watt to Horsepower (hp) converter is 100% free, uses the exact international conversion factor (0.00134102), and works on any device with no signup.
How do I convert Horsepower (hp) back to Watt?
To convert back, divide by 0.00134102 (or multiply by 745.699872). You can also use our dedicated How Many Watt in 1 Horsepower (hp)? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Power units are supported?
This converter supports 4 units: Watt, Kilowatt, Megawatt, Horsepower (hp).