Convert horsepower to watt

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

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Example: horsepower to watt

Starting value Increment Accuracy

To convert horsepower to watt, multiply by 745.699872.

1 hp = 745.699872 W

Example: 1 horsepower = 745.699872 watt

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.
'Kilowatts per hour' is a common slip of the tongue, power is measured in plain kilowatts. The kilowatt-hour (kWh) is energy: power multiplied by time. A machine draws 3 kW, and uses 3 kWh in one hour.
American air conditioners are rated in BTU/h, European ones in watts, 1 kW is about 3,412 BTU/h. A '9,000 BTU' unit is therefore about 2.6 kW. Divide BTU/h by 3,412 to get kilowatts.
'Calories burned per hour' is a power figure, not an amount of energy: 1 kcal/h is about 1.16 W. A run that burns 600 kcal in an hour corresponds to an average output of about 700 W.

Score: 0

21.5 watt equals 0.0288 horsepower.

Correct answer: 21.5 watt = 0.0288 horsepower.

3.6 horsepower equals 2 680 watt.

Correct answer: 3.6 horsepower = 2 680 watt.

88 horsepower equals 39 400 watt.

Correct answer: 88 horsepower = 65 600 watt.

15.4 horsepower equals 5 740 watt.

Correct answer: 15.4 horsepower = 11 500 watt.

192 horsepower equals 143 000 watt.

Correct answer: 192 horsepower = 143 000 watt.