Skip to content

Convert horsepower to milliwatt

Here you can quickly calculate how many milliwatt fit in one horsepower.

- scroll: formula · table · questions -

  • 1 hp = 745699.871582 mW
  • 1 mW = 0.000001 hp

Horsepower to milliwatt conversion table

horsepower milliwatt
1 745699.871582
2 1491399.743165
5 3728499.357911
10 7456998.715823
20 14913997.431645
50 37284993.579114
100 74569987.158227

Horsepower to milliwatt formula

To convert horsepower to milliwatt, multiply by 745699.871582.

1 hp = 745699.871582 mW
Example: 1 horsepower = 745699.871582 milliwatt

Common power conversion mistakes

  • Horsepower comes in flavours: the metric horsepower is about 735.5 W while the mechanical (imperial/US) horsepower is about 745.7 W, roughly 1.4% stronger. The same engine therefore shows a slightly lower number in hp than in European hk/PS figures. Always state which horsepower you mean.

Quick horsepower and milliwatt conversion quiz

Score: 0

100 milliwatt equals 0.00134 horsepower.

Correct answer: 100 milliwatt = 0.000134 horsepower.

20 horsepower equals 2.98e+6 milliwatt.

Correct answer: 20 horsepower = 1.49e+7 milliwatt.

25 horsepower equals 1.86e+7 milliwatt.

Correct answer: 25 horsepower = 1.86e+7 milliwatt.

50 milliwatt equals 6.71e-5 horsepower.

Correct answer: 50 milliwatt = 6.71e-5 horsepower.

5 milliwatt equals 6.71e-7 horsepower.

Correct answer: 5 milliwatt = 6.71e-6 horsepower.

More power conversions