Mechanical horsepower to Nanowatt 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 nanowatts [nW] or nanowatts [nW] 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 * 1011 nanowatts [nW]1 nanowatt [nW] ≈ 1.341 * 10-12 mechanical horsepower [hp(I)]

Convert mechanical horsepower to nanowatts

There are two simple ways to convert mechanical horsepower [hp(I)] to nanowatts [nW]. In the first calculation method, the value in mechanical horsepower [hp(I)] is divided by the rounded conversion factor of 1.341 * 10-12. The second method multiplies the value in mechanical horsepower [hp(I)] by the rounded conversion factor of 7.457 * 1011.

  • Nanowatts [nW] ≈ mechanical horsepower [hp(I)] ÷ (1.341 * 10-12)
  • Nanowatts [nW] ≈ mechanical horsepower [hp(I)] * 7.457 * 1011

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 nanowatts [nW] can be achieved using the following calculation method.

  • Nanowatts [nW] = mechanical horsepower [hp(I)] * 2,721,554.22 * 273,997.801

Convert nanowatts to mechanical horsepower

Converting nanowatts [nW] to mechanical horsepower [hp(I)] is easy and can be done in two ways. The first method involves multiplication, in which the value in nanowatts [nW] is multiplied by the rounded conversion factor of 1.341 * 10-12. The second variant is a division. Here, the value in nanowatts [nW] is divided by the rounded conversion factor of 7.457 * 1011.

  • Mechanical horsepower [hp(I)] ≈ nanowatts [nW] * 1.341 * 10-12
  • Mechanical horsepower [hp(I)] ≈ nanowatts [nW] ÷ (7.457 * 1011)

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

  • Mechanical horsepower [hp(I)] = nanowatts [nW] ÷ 2,721,554.22 ÷ 273,997.801

Converter

Decimal places

How it's calculated

Factor: 
≈ 7.457 * 1011
Nanowatts = Mechanical horsepower * 2,721,554.22 * 273,997.801
Mechanical horsepower = Nanowatts ÷ 2,721,554.22 ÷ 273,997.801

To all available units

Mechanical horsepower

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Megawatts

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Megawatts

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Megawatts

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