---
title: "Horsepowers to Watts — hp to W converter"
description: "1 horsepower = 745.6999 watts. Convert horsepowers to watts with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/hp-to-watts/
site: "At One Place"
---

# Horsepowers to watts

**1 horsepower in watts: 1 hp = 745.6999 W**

W = hp × 745.6998716

To convert horsepowers to watts, multiply by 745.6998716. The table below gives the values people look up most often, and the converter works for any number.

## Horsepowers to watts table

*Common horsepower values converted to watts.*

| Horsepowers | Watts |
| --- | --- |
| 1 hp | 745.6999 |
| 2 hp | 1,491.3997 |
| 3 hp | 2,237.0996 |
| 4 hp | 2,982.7995 |
| 5 hp | 3,728.4994 |
| 10 hp | 7,456.9987 |
| 15 hp | 11,185.498 |
| 20 hp | 14,913.997 |
| 25 hp | 18,642.497 |
| 30 hp | 22,370.996 |
| 40 hp | 29,827.995 |
| 50 hp | 37,284.994 |
| 75 hp | 55,927.49 |
| 100 hp | 74,569.987 |
| 250 hp | 186,424.97 |
| 500 hp | 372,849.94 |
| 1,000 hp | 745,699.87 |

## How the conversion works

The relationship is W = hp × 745.6998716. Both units measure power, so the conversion is a fixed factor that never changes.

> Horsepower: Mechanical horsepower.

## Common questions

### How many watts are in one horsepower?

One horsepower equals 745.6999 watts. W = hp × 745.6998716.

### How do you convert horsepowers to watts?

Use W = hp × 745.6998716. So 10 hp is 7,456.9987 W.

### How many horsepowers are in one watt?

One watt equals 0.001341 horsepowers, which is the reverse of the conversion above.

### Is there more than one kind of horsepower?

Mechanical horsepower.

## Related pages

- [Watts to Horsepowers](https://atoneplace.net/convert/watts-to-hp/)
- [Horsepowers to Kilowatts](https://atoneplace.net/convert/hp-to-kilowatts/)
- [Horsepowers to Megawatts](https://atoneplace.net/convert/hp-to-megawatts/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)