How to Convert Horsepower to Watts
To convert horsepower to watts, multiply the value by 745.7.
The Formula
Watts = Horsepower × 745.7
Key Fact
1 horsepower = 745.7 watts
Tip: To convert watts back to horsepower, divide by 745.7.
Horsepower to Watts
Convert horsepower (hp) to watts (W) with formulas, examples, and conversion tables.
hp
W
1 hp = 745.7 W
Full precision:745.7 W
Step-by-Step Solution
To convert 1 horsepower to watts, we multiply by 745.7 because one horsepower equals exactly 745.7 watts.
1 horsepower = 745.7 watts
Since each horsepower contains 745.7 watts, we multiply our value by this factor:
1 × 745.7 = 745.7 watts
So 1 horsepower = 745.7 watts.
Quick check: 745.7 ÷ 745.7 = 1 horsepower
Example Conversions
Example 1: 1 hp = 745.7 W
1 × 745.7 = 745.7
1 × 745.7 = 745.7
Example 2: 5 hp = 3728.5 W
5 × 745.7 = 3728.5
5 × 745.7 = 3728.5
Example 3: 10 hp = 7457 W
10 × 745.7 = 7457
10 × 745.7 = 7457
Horsepower to Watts Table
| Horsepower | Watts |
|---|---|
| 1 hp | 745.7 W |
| 2 hp | 1491.4 W |
| 5 hp | 3728.5 W |
| 10 hp | 7457 W |
| 20 hp | 14914 W |
| 25 hp | 18642.5 W |
| 50 hp | 37285 W |
| 100 hp | 74570 W |
| 250 hp | 186425 W |
| 500 hp | 372850 W |
| 1000 hp | 745700 W |
1 Horsepower in Other Units
| Unit | 1 hp = |
|---|---|
| Horsepower to Watts | 745.7 W |
| Horsepower to Kilowatts | 0.7457 kW |
| Horsepower to Megawatts | 0.000746 MW |
| Horsepower to Gigawatts | 7.46e-7 GW |
| Horsepower to Milliwatts | 745700 mW |
| Horsepower to Metric Horsepower | 1.0139 PS |
| Horsepower to BTU/hour | 2544.43 BTU/h |
| Horsepower to Foot-pounds/second | 549.999 ft·lb/s |
| Horsepower to Calories/second | 178.227 cal/s |