Online Calculators FreeReference Manual

Watts to Horsepower (mech) Converter

Convert watts to horsepower (mech) instantly. Exact factor: 1 W = 0.00134 hp.

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Convert watts to horsepower (mech)

The exact conversion factor is 1 W = 0.00134 hp. Type any value and the result updates instantly; the math is shown beneath the board.

Worked by hand

Multiply the watts value by 745.7 (that is, 1 ÷ 0.00134) to get horsepower (mech).

Worked example

  1. Take 1 W
  2. multiply by 745.7
  3. the result is 0.00134 hp

How to use it

  1. Enter your watts
  2. Read the horsepower (mech) result
  3. Check the factor line to verify by hand

Frequently asked questions

How many horsepower (mech) are in one watts?

Exactly 0.00134 hp, by the SI/NIST definition.

How do I convert horsepower (mech) back to watts?

Divide by 0.00134 — or use the full converter where both directions are one click.

Is this rounding or exact?

The factor is exact; only the displayed decimals are rounded.