Quick answer: 1 Horsepower (hp) in Watt
1 hp equals 745.699872 W. To convert Horsepower (hp) to Watt, multiply by 745.699872 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 Horsepower (hp) in Watt?
- Multiply 1 by the conversion factor 745.699872
- 1 Horsepower (hp) = 745.699872 Watt
How much is 5 Horsepower (hp) in Watt?
- Multiply 5 by the conversion factor 745.699872
- 5 Horsepower (hp) = 3728.5 Watt
How much is 25 Horsepower (hp) in Watt?
- Multiply 25 by the conversion factor 745.699872
- 25 Horsepower (hp) = 18642.5 Watt
Quick Conversion Reference Table
| Horsepower (hp) (hp) | Watt (W) |
|---|---|
| 1 hp (Horsepower (hp)) | 745.699872 W (Watt) |
| 2 hp (Horsepower (hp)) | 1491.4 W (Watt) |
| 5 hp (Horsepower (hp)) | 3728.5 W (Watt) |
| 10 hp (Horsepower (hp)) | 7457 W (Watt) |
| 20 hp (Horsepower (hp)) | 14914 W (Watt) |
| 50 hp (Horsepower (hp)) | 37284.99 W (Watt) |
| 100 hp (Horsepower (hp)) | 74569.99 W (Watt) |
| 500 hp (Horsepower (hp)) | 372849.94 W (Watt) |
| 1000 hp (Horsepower (hp)) | 745699.87 W (Watt) |
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How to Use This Converter
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FAQ
How much is 1 Horsepower (hp) in Watt?
1 Horsepower (hp) = 745.699872 Watt.
How do I convert Horsepower (hp) to Watt?
Enter your value in Horsepower (hp) into the converter above and the result in Watt appears instantly. 1 hp equals 745.699872 W — just multiply your value by 745.699872.
What is the formula for Horsepower (hp) to Watt?
The formula is: value in Watt = value in Horsepower (hp) × 745.699872. For example, 5 hp × 745.699872 = 3728.5 W.
Is this Horsepower (hp) to Watt converter free and accurate?
Yes. This Horsepower (hp) to Watt converter is 100% free, uses the exact international conversion factor (745.699872), and works on any device with no signup.
How do I convert Watt back to Horsepower (hp)?
To convert back, divide by 745.699872 (or multiply by 0.00134102). You can also use our dedicated How Many Horsepower (hp) in 1 Watt? 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).