Mechanical horsepower to Terawatt 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 terawatts [TW] or terawatts [TW] 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 * 10-10 terawatts [TW]1 terawatt [TW] ≈ 1.341 * 109 mechanical horsepower [hp(I)]

Convert mechanical horsepower to terawatts

There are two simple ways to convert mechanical horsepower [hp(I)] to terawatts [TW]. In the first calculation method, the value in mechanical horsepower [hp(I)] is divided by the rounded conversion factor of 1.341 * 109. The second method multiplies the value in mechanical horsepower [hp(I)] by the rounded conversion factor of 7.457 * 10-10.

  • Terawatts [TW] ≈ mechanical horsepower [hp(I)] ÷ (1.341 * 109)
  • Terawatts [TW] ≈ mechanical horsepower [hp(I)] * 7.457 * 10-10

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 terawatts [TW] can be achieved using the following calculation method.

  • Terawatts [TW] = mechanical horsepower [hp(I)] * 27.2155422 * 27.3997801 ÷ 1012

Convert terawatts to mechanical horsepower

Converting terawatts [TW] to mechanical horsepower [hp(I)] is easy and can be done in two ways. The first method involves multiplication, in which the value in terawatts [TW] is multiplied by the rounded conversion factor of 1.341 * 109. The second variant is a division. Here, the value in terawatts [TW] is divided by the rounded conversion factor of 7.457 * 10-10.

  • Mechanical horsepower [hp(I)] ≈ terawatts [TW] * 1.341 * 109
  • Mechanical horsepower [hp(I)] ≈ terawatts [TW] ÷ (7.457 * 10-10)

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

  • Mechanical horsepower [hp(I)] = terawatts [TW] ÷ 27.2155422 ÷ 27.3997801 * 1012

Converter

Decimal places

How it's calculated

Factor: 
≈ 1.341 * 109
Terawatts = Mechanical horsepower * 27.2155422 * 27.3997801 ÷ 1012
Mechanical horsepower = Terawatts ÷ 27.2155422 ÷ 27.3997801 * 1012

To all available units

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