Horsepower to Watts
Snapshot
1 Horsepower equals 745.699872 Watts. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This conversion uses exact watt-based power definitions.
- Example: For 0.1 Horsepower, the result equals 74.569987 Watts.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Converter Calculator
745.699872 Watts (W)
SwitchExplanation
Formula: Watts = Horsepower × 745.699872. Why: horsepower and metric horsepower each have their own fixed watt equivalence, so the calculator normalizes through watts before applying the exact target definition.
Horsepower (hp): a mechanical power unit with a fixed watt equivalent, commonly used for engines, motors, and machinery ratings.
Watts (W): the SI derived unit of power, equal to one joule of energy transferred per second.
This route is useful when comparing motor and engine ratings across watts, kilowatts, horsepower, and metric horsepower without mixing the underlying definitions.
This conversion is purely multiplicative because both units reduce through watts using fixed power definitions with no offset.
Common Conversion Values
| Horsepower (hp) | Watts (W) |
|---|---|
| 0.1 | 74.569987 |
| 1 | 745.699872 |
| 10 | 7,456.998716 |
| 100 | 74,569.987158 |
| 1,000 | 745,699.871582 |
| 10,000 | 7,456,998.715823 |
Frequently Asked Questions
What is 1 horsepower in watts?
1 Horsepower equals 745.699872 Watts on this page.
Does this Horsepower to Watts page use the fixed watt equivalent for horsepower?
Yes. Horsepower and metric horsepower each use fixed watt equivalents on this page, so engine, motor, and machinery ratings stay aligned across the direct answer, calculator, and table.
When would I convert horsepower to watts?
This route is useful when comparing motor and engine ratings across watts, kilowatts, horsepower, and metric horsepower without mixing the underlying definitions.
How do I reverse Horsepower to Watts?
Use the mirror Watts to Horsepower route; it applies the inverse relationship with the same power assumptions.