Watts to Horsepower Converter
Convert watts to horsepower with a free calculator
How to Convert Watts to Horsepower
Formula: 1 W = 0.001341021859 hp
Multiply your watts value by 0.001341021859 to get the equivalent in horsepower. The conversion factor 0.001341021859 is based on the internationally accepted definitions of both units.
Watts to Horsepower Reference Table
| Watts (W) | Horsepower (hp) |
|---|---|
| 1 W | 0.001341021859 hp |
| 5 W | 0.006705109293 hp |
| 10 W | 0.01341021859 hp |
| 25 W | 0.03352554647 hp |
| 50 W | 0.06705109293 hp |
| 100 W | 0.1341021859 hp |
| 500 W | 0.6705109293 hp |
| 1000 W | 1.341021859 hp |
Related Conversions
Frequently Asked Questions
How many watts is 1 horsepower? +
1 mechanical horsepower equals 745.7 watts.
What is the origin of horsepower? +
James Watt coined the term to market his steam engines. He estimated a draft horse could do 33,000 foot-pounds of work per minute and defined 1 HP as that rate.
How many watts does a typical car engine produce? +
A 200 HP car engine produces about 149,140 watts (149 kW). A Tesla Model 3 motor produces about 283 HP (211 kW).