1 hp to Watts
1 hp ≈ 745.7 W
1 horsepower is approximately 745.7 watts.
How to convert 1 hp to W
Use the formula W = hp × 745.69987158227:
W = 1 × 745.69987158227W = 745.699872
So 1 hp = 745.699872 W, or about 745.7 W rounded.
Rounded values and quick estimate
- Rounded to a whole number: 746 W
- Rounded to one decimal place: 745.7 W
- Conversion factor: 1 horsepower = 745.7 watts
This conversion is exact, so there is no need to estimate: just multiply by 745.699872.
1 hp in other units
- Watts
- 745.7 W
- Kilowatts
- 0.7457 kW
- BTU per hour
- 2544.43 BTU/h
- Tons of refrigeration
- 0.212 tons
1 hp and nearby values
About horsepower and watts
Mechanical horsepower is about 745.7 watts. It is the traditional unit of engine power in the US.
Related conversions
Frequently asked questions
What is 1 hp in Watts?
1 horsepower is about 745.7 watts (1 hp ≈ 745.7 W).
How do you convert 1 hp to W?
Apply W = hp × 745.69987158227: W = 1 × 745.69987158227, W = 745.699872.
How many horsepower is 745.7 W?
745.7 W is about 1 horsepower.