Watt to Horsepower (mechanical)

1 W = 0.0013410221 hp

Value

From

Precision & format

Significant figures

Notation

1 W equals

0.00134102209hp

All 14 units

WattW
1
KilowattkW
0.001
MegawattMW
0.000001
GigawattGW
1 × 10⁻⁹
MilliwattmW
1,000
Horsepower (mechanical)hp
550 ft·lbf/s
0.00134102209
Horsepower (metric)PS
75 kgf·m/s
0.001359621617
Horsepower (electric)hp (E)
0.001340482574
Horsepower (boiler)hp (S)
0.000101941995
BTU per hourBTU/h
3.412141633
Ton of refrigerationRT
12 000 BTU/h
0.0002843451361
Foot-pound per secondft·lbf/s
0.7375621493
Calorie per secondcal/s
0.2390057361
Kilocalorie per hourkcal/h
0.8604206501

Watt to Horsepower (mechanical) table

Common Watt values converted to Horsepower (mechanical)
Watt (W)	Horsepower (mechanical) (hp)
1	0.0013410221
2	0.0026820442
5	0.0067051104
10	0.013410221
20	0.026820442
50	0.067051104
100	0.13410221
250	0.33525552
500	0.67051104
1,000	1.3410221

How the conversion works

Multiply the watt figure by 0.00134102209 to get horsepower (mechanical). Every factor on this site is anchored to the SI base unit for power, so the same number is used everywhere it appears.

Going the other way, 1 hp = 745.69987 W — see horsepower (mechanical) to watt.

See all 14 power units →