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Formula
W = hp × 745.6998715823
Example
Example: convert 100 horsepower to watts.
100 hp = 74569.98715823 W
Conversion table
| horsepower (hp) | watts (W) |
|---|---|
| 1 hp | 745.69987158 W |
| 2 hp | 1491.39974316 W |
| 5 hp | 3728.49935791 W |
| 10 hp | 7456.99871582 W |
| 20 hp | 14913.99743165 W |
| 50 hp | 37284.99357911 W |
| 100 hp | 74569.98715823 W |
Explanation
These are both units.
How to convert horsepower to watts
- Start with the value in horsepower (hp).
- Multiply it by 745.6998715823.
- The result is the measurement in watts (W).
Example: 100 hp → 74569.98715823 W
Frequently Asked Questions
How much is 100 horsepower in watts?
100 horsepower is about 74569.99 watts.
How many watts is 1 horsepower?
1 horsepower is about 745.7 watts.
How many horsepower is 1 watt?
1 watt is about 0.001341 horsepower.
What is the difference between horsepower and watts?
Both measure power, but they are commonly used in different contexts. The watt (W) is the SI unit and is widely used in electrical/device specs, while horsepower (hp) is a traditional unit often used to describe engines and machinery.
Where are horsepower and watts used?
Watts are common in electrical power/consumption (devices, appliances, lighting). Horsepower is commonly used for mechanical power (engines, pumps, compressors, machinery).
Why does 1 horsepower equal 745.7 watts?
Because horsepower (hp) is defined in terms of watts. In particular, 1 mechanical hp is about 745.7 W, so converting to watts uses that fixed definition.