hp to Watts converter (hp to W)
Convert hp (hp) to Watts (W) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert hp to Watts
1 horsepower (hp) is equal to 745.69987158227 watts (W).
P(W) = P(hp) × 745.69987158227
Multiply the power in hp by 745.69987158227:
Example: Convert 5 hp to W:
P(W) = 5 × 745.69987158227 = 3728.4993579 W
What is a hp?
The hp (hp) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Watts?
The Watts (W) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts power from hp into Watts. One hp equals 745.699871582 W.
hp to Watts conversion table
Common hp values and the matching W result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| hp (hp) | Watts (W) |
|---|---|
| 1 hp | 745.699871582 W |
| 2 hp | 1491.399743165 W |
| 5 hp | 3728.499357911 W |
| 10 hp | 7456.998715823 W |
| 20 hp | 14913.997431645 W |
| 50 hp | 37284.993579113 W |
| 100 hp | 74569.987158227 W |
| 200 hp | 149139.974316454 W |
How this calculator works
The form on this page is a hp-to-Watts converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the W result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many W are in 1 hp?
1 hp = 745.699871582 W.
How do I convert hp to Watts?
Multiply the power in hp by 745.69987158227:
Is this hp to W converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.