hp to watts converter

1 mechanical horsepower equals 745.7 watts. Conversions use W = hp × 745.7

hp → 745.7 W

W = hp × 745.7

Converter

Worked examples

1 hp = 745.7 W
2 hp = 1,491.4 W
5 hp = 3,728.5 W
10 hp = 7,457 W
100 hp = 74,569.99 W

mechanical horsepower to watts conversion table

hp	W	Arithmetic
1 hp	745.7 W	× 745.7
2 hp	1,491.4 W	× 745.7
3 hp	2,237.1 W	× 745.7
4 hp	2,982.8 W	× 745.7
5 hp	3,728.5 W	× 745.7
6 hp	4,474.2 W	× 745.7
8 hp	5,965.6 W	× 745.7
10 hp	7,457 W	× 745.7
12 hp	8,948.4 W	× 745.7
15 hp	11,185.5 W	× 745.7
20 hp	14,914 W	× 745.7
25 hp	18,642.5 W	× 745.7
30 hp	22,371 W	× 745.7
40 hp	29,827.99 W	× 745.7
50 hp	37,284.99 W	× 745.7
60 hp	44,741.99 W	× 745.7
70 hp	52,198.99 W	× 745.7
80 hp	59,655.99 W	× 745.7
90 hp	67,112.99 W	× 745.7
100 hp	74,569.99 W	× 745.7

How to convert hp to W

Take your value in mechanical horsepower.
Multiply by 745.7
That is your answer in watts — no rounding needed until you choose a display precision.

Related conversions

W to hp W to kW W to MW W to PS W to BTU/h kW to W MW to W hp to kW hp to MW all power units

Questions

How many watts in 1 mechanical horsepower?

Exactly 745.7 W. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert hp to W?

Multiply the mechanical horsepower figure by 745.7 — or use the converter above, which updates as you type.

Is hp to W the same as W to hp?

No — they are inverses. One hp is 745.7 W, while one W is 0.0013410221 hp.

What is 1 hp in W?

1 hp = 745.7 W (see the value page for the full arithmetic).