Convert Watts to Horsepower
| Watts (W) | Horsepower (hp) |
|---|---|
| 1 | 0.001341 |
| 10 | 0.01341 |
| 50 | 0.067051 |
| 100 | 0.134102 |
| 500 | 0.670511 |
| 746 | 1.000402 |
| 1000 | 1.341022 |
| 5000 | 6.705109 |
| 10000 | 13.410219 |
How to Convert Watts to Horsepower
Power conversion is essential for automotive, electrical, and mechanical engineering. Whether you're comparing car engines, sizing generators, or understanding your electricity usage, converting between Watts and Horsepower is a key skill.
Conversion Formula
Power is the rate of energy transfer. The watt (1 J/s) is the SI unit. The conversion factor 0.00134102 translates between W and hp based on their watt equivalents.
Step-by-Step Examples
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Frequently Asked Questions
How do I convert Watts to Horsepower?
Multiply the Watts value by 0.00134102. For example, 746 W ≈ 1.00040 hp.
What is the relationship between horsepower and watts?
1 mechanical horsepower = 745.7 watts. This was defined by James Watt to compare steam engines with draft horses. A typical car engine produces 150–300 hp (112–224 kW).
What is the formula for Watts to Horsepower?
hp = W × 0.00134102. Power is energy per unit time, and this factor relates the specific definitions of W and hp.
What is the difference between power and energy?
Power is the rate of energy transfer (measured in watts), while energy is the total amount of work done (measured in joules or kWh). A 100W bulb running for 10 hours uses 1 kWh of energy.