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Home› Power› hp → W

Horsepower to Watts Converter

hp → W: type a value and the result appears instantly.

1 hp = 745.6998716 W
1 W = 0.00134102209 hp
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How to convert horsepower to watts

Use this formula:

W = hp × 745.6998716

Examples

hp to W conversion chart

horsepower (hp)watts (W)
0.1 hp74.57 W
0.25 hp186.425 W
0.5 hp372.85 W
1 hp745.7 W
2 hp1,491.4 W
3 hp2,237.1 W
4 hp2,982.8 W
5 hp3,728.5 W
6 hp4,474.2 W
7 hp5,219.9 W
8 hp5,965.6 W
9 hp6,711.3 W
10 hp7,457 W
12 hp8,948.4 W
15 hp11,185.5 W
20 hp14,914 W
25 hp18,642.5 W
30 hp22,371 W
40 hp29,828 W
50 hp37,285 W
60 hp44,742 W
70 hp52,199 W
75 hp55,927.5 W
80 hp59,656 W
90 hp67,113 W
100 hp74,570 W
150 hp111,855 W
200 hp149,140 W
250 hp186,425 W
500 hp372,850 W
1,000 hp745,700 W

About the units

Horsepower (mechanical) (hp) is a US customary / imperial unit. 1 hp = 745.6998716 W.

Watt (W) is a metric (SI) unit. 1 W = 0.001 kW.

Frequently asked questions

How do I convert horsepower to watts?
Multiply the value in hp by 745.6998716.
How many watts are in 1 horsepower (mechanical)?
1 hp = 745.6998716 W.
What is 12 hp in W?
12 hp = 8,948.4 W.
How do I convert watts to horsepower?
Use the reverse converter: W → hp.

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Related conversions

W → hpkW → hphp → kWkW → PSPS → kWW → BTU/hBTU/h → WkW → BTU/hBTU/h → kWTR → kWkW → TRW → kWkW → WMW → kW
Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters