Mechanical horsepower to Gigawatt 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 gigawatts [GW] or gigawatts [GW] 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)] ≈ 7.457 * 10-7 gigawatts [GW]1 gigawatt [GW] ≈ 1,341,022.0896 mechanical horsepower [hp(I)]

Convert mechanical horsepower to gigawatts

There are two simple ways to convert mechanical horsepower [hp(I)] to gigawatts [GW]. In the first calculation method, the value in mechanical horsepower [hp(I)] is divided by the rounded conversion factor of 1,341,022.0896. The second method multiplies the value in mechanical horsepower [hp(I)] by the rounded conversion factor of 7.457 * 10-7.

  • Gigawatts [GW] ≈ mechanical horsepower [hp(I)] ÷ 1,341,022.0896
  • Gigawatts [GW] ≈ mechanical horsepower [hp(I)] * 7.457 * 10-7

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 gigawatts [GW] can be achieved using the following calculation method.

  • Gigawatts [GW] = mechanical horsepower [hp(I)] * 27.2155422 * 27.3997801 ÷ 109

Convert gigawatts to mechanical horsepower

Converting gigawatts [GW] to mechanical horsepower [hp(I)] is easy and can be done in two ways. The first method involves multiplication, in which the value in gigawatts [GW] is multiplied by the rounded conversion factor of 1,341,022.0896. The second variant is a division. Here, the value in gigawatts [GW] is divided by the rounded conversion factor of 7.457 * 10-7.

  • Mechanical horsepower [hp(I)] ≈ gigawatts [GW] * 1,341,022.0896
  • Mechanical horsepower [hp(I)] ≈ gigawatts [GW] ÷ (7.457 * 10-7)

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

  • Mechanical horsepower [hp(I)] = gigawatts [GW] ÷ 27.2155422 ÷ 27.3997801 * 109

Converter

Decimal places

How it's calculated

Factor: 
≈ 1,341,022.09
Gigawatts = Mechanical horsepower * 27.2155422 * 27.3997801 ÷ 109
Mechanical horsepower = Gigawatts ÷ 27.2155422 ÷ 27.3997801 * 109

To all available units

Mechanical horsepower

Hectowatts

Mechanical horsepower

Joules per hour

Mechanical horsepower

Joules per minute

Mechanical horsepower

Joules per second

Mechanical horsepower

Kilocalories per hour

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