Horsepower to Watts
Convert Horsepower to Watts instantly. Free online power unit converter with exact formula, conversion table and FAQ.
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Formula
W = hp × 745.6998716
hp = W × 0.00134102209
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 (imperial) horsepower is a traditional unit of power used for engines and motors, defined as exactly 745.6998715822702 watts.
What is the destination unit in this conversion?
The destination unit is the watt (W). The watt is the SI unit of power, equal to one joule per second.
How do I convert horsepower to watts?
Multiply the horsepower value by 745.6998716 to get watt. For example, 1 hp × 745.6998716 = 745.7 W.
Is the horsepower to watts conversion exact?
Yes. Both units are defined by fixed numeric relationships to the watt, so the conversion factor used here, 745.6998716, is exact.
Where is this conversion commonly used?
It is used when comparing power ratings expressed in horsepower against equipment, engines, or specifications rated in watts.
Can I convert watts back to horsepower?
Yes. Multiply the watt value by 0.00134102209 to get horsepower.
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About this conversion
This page converts horsepower (hp) into watts (W), two units used to describe power, the rate at which energy is transferred or work is done.
Mechanical (imperial) horsepower is a traditional unit of power used for engines and motors, defined as exactly 745.6998715822702 watts.
The watt is the SI unit of power, equal to one joule per second.
The formula is W = hp × 745.6998716, derived from each unit's fixed relationship to the watt, the SI unit of power.
Because both units are defined by exact numeric relationships to the watt, this conversion is exact rather than approximate.