Horsepower to Watt
Convert Horsepower to Watt instantly. Free online engineering unit converter with exact formula, conversion table and FAQ.
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Convert common stress, force, torque, power, and energy units used in engineering.
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Formula
W = hp × 745.7
hp = W × 0.00134102
Conversion table
| 1 hp | 745.7 W |
| 5 hp | 3728.5 W |
| 10 hp | 7457 W |
| 20 hp | 14914 W |
| 50 hp | 37285 W |
| 100 hp | 74570 W |
| 500 hp | 372850 W |
| 1000 hp | 745700 W |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the Horsepower (hp). Mechanical horsepower.
What is the destination unit in this conversion?
The destination unit is the Watt (W). The watt is one joule per second.
How do I convert Horsepower to Watt?
Multiply the Horsepower value by 745.7. For example, 10 hp × 745.7 = 7457 W.
Is the Horsepower to Watt conversion exact?
Yes. Both units belong to the same engineering measurement family (power), so the ratio between them is a fixed, defined value rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in Horsepower needs to be compared with, or reported in, Watt, such as in engineering, scientific, or industrial calculations.
Can I convert Watt back to Horsepower?
Yes. Multiply the Watt value by 0.00134102 to get Horsepower.
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About this conversion
This page converts Horsepower (hp) to Watt (W) within the engineering converter.
Mechanical horsepower. The watt is one joule per second.
The formula is W = hp × 745.7, based on each unit's fixed relationship to the power base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common Horsepower values already converted to Watt.