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watts to hp | Exact Decimal + Formula

1 Watt = 0.001341 Horsepower (HP)

Conversions between Watt (W) and Horsepower (HP) (hp) are essential in the power category. This tool provides a quick, free, and accurate way to convert watts to horsepower (hp)s for academic, professional, or personal calculations. Check the detailed conversion table and formula explanation below for more context.

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Formula

hp = W × 0.001341022

To convert Watt to Horsepower (HP), use the formula displayed above.

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Watt to Horsepower (HP): Quick Reference Table

Watt Horsepower (HP) (Decimal) Fraction
0.001 W 0.000001 hp -
0.01 W 0.000013 hp -
0.1 W 0.000134 hp -
0.5 W 0.000671 hp -
1 W 0.001341 hp -
2 W 0.002682 hp -
5 W 0.006705 hp -
10 W 0.01341 hp -
25 W 0.033526 hp -
50 W 0.067051 hp -
100 W 0.134102 hp -
250 W 0.335256 hp -
500 W 0.670511 hp -
1000 W 1.341022 hp -

W to hp Formula and Examples

Direct Formula hp = W × 0.001341022
Inverse Formula W = hp × 745.699872
Mental Math Shortcut

Divide the value by roughly 745.7 to quickly estimate the converted result.

Common Watt to Horsepower (HP) Calculations

  • 5 W = 0.006705 hp
  • 10 W = 0.01341 hp
  • 50 W = 0.067051 hp
  • 100 W = 0.134102 hp
  • 500 W = 0.670511 hp

How to Convert Watt to Horsepower (HP)

How many horsepower (hp)s are in a watt?
1 Watt (W) is equal to 0.001341 Horsepower (HP) (hp). To convert watts to horsepower (hp)s, multiply your value by 0.001341.
How do I convert watt to horsepower (hp)?
To convert Watt to Horsepower (HP), use the formula: Horsepower (HP) = Watt × 0.001341. For example, 5 W = 0.006705 hp.
What is the formula for W to hp?
The formula is: hp = W × 0.001341. This is based on the exact SI conversion factor. Use our calculator above to convert any value instantly.