Mechanical horsepower to Joule per hour Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert mechanical horsepower [hp(I)] to joules per hour [J/h] or joules per hour [J/h] to mechanical horsepower [hp(I)]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 mechanical horsepower [hp(I)] ≈ 2,684,519.5377 joules per hour [J/h]1 joule per hour [J/h] ≈ 3.725 * 10-7 mechanical horsepower [hp(I)]

Convert mechanical horsepower to joules per hour

There are two simple ways to convert mechanical horsepower [hp(I)] to joules per hour [J/h]. In the first calculation method, the value in mechanical horsepower [hp(I)] is divided by the rounded conversion factor of 3.725 * 10-7. The second method multiplies the value in mechanical horsepower [hp(I)] by the rounded conversion factor of 2,684,519.5377.

  • Joules per hour [J/h] ≈ mechanical horsepower [hp(I)] ÷ (3.725 * 10-7)
  • Joules per hour [J/h] ≈ mechanical horsepower [hp(I)] * 2,684,519.5377

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of mechanical horsepower [hp(I)] to joules per hour [J/h] can be achieved using the following calculation method.

  • Joules per hour [J/h] = mechanical horsepower [hp(I)] * 1,632.932532 * 1,643.986806

Convert joules per hour to mechanical horsepower

Converting joules per hour [J/h] to mechanical horsepower [hp(I)] is easy and can be done in two ways. The first method involves multiplication, in which the value in joules per hour [J/h] is multiplied by the rounded conversion factor of 3.725 * 10-7. The second variant is a division. Here, the value in joules per hour [J/h] is divided by the rounded conversion factor of 2,684,519.5377.

  • Mechanical horsepower [hp(I)] ≈ joules per hour [J/h] * 3.725 * 10-7
  • Mechanical horsepower [hp(I)] ≈ joules per hour [J/h] ÷ 2,684,519.5377

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of joules per hour [J/h] to mechanical horsepower [hp(I)] can be achieved using the following calculation method.

  • Mechanical horsepower [hp(I)] = joules per hour [J/h] ÷ 1,632.932532 ÷ 1,643.986806

Converter

Decimal places

How it's calculated

Factor: 
≈ 2,684,519.538
Joules per hour = Mechanical horsepower * 1,632.932532 * 1,643.986806
Mechanical horsepower = Joules per hour ÷ 1,632.932532 ÷ 1,643.986806

To all available units

Mechanical horsepower

Joules per minute

Mechanical horsepower

Joules per second

Mechanical horsepower

Kilocalories per hour

Mechanical horsepower

Kilocalories per minute

Mechanical horsepower

Kilocalories per second

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