Watt to Electrical horsepower Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert watts [W] to electrical horsepower [hp(E)] or electrical horsepower [hp(E)] to watts [W]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert watts to electrical horsepower
There are two simple ways to convert watts [W] to electrical horsepower [hp(E)]. In the first calculation method, the value in watts [W] is divided by 746. The second method multiplies the value in watts [W] by the rounded conversion factor of 0.0013.
- Electrical horsepower [hp(E)] = watts [W] ÷ 746
- Electrical horsepower [hp(E)] ≈ watts [W] * 0.0013
The calculation method with a rounded conversion value is more suitable for rough conversions from watts [W] to electrical horsepower [hp(E)], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.
Convert electrical horsepower to watts
Converting electrical horsepower [hp(E)] to watts [W] is easy and can be done in two ways. The first method involves multiplication, whereby the value in electrical horsepower [hp(E)] is multiplied by 746. The second variant is a division. Here, the value in electrical horsepower [hp(E)] is divided by the rounded conversion factor of 0.0013.
- Watts [W] = electrical horsepower [hp(E)] * 746
- Watts [W] ≈ electrical horsepower [hp(E)] ÷ 0.0013
The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from electrical horsepower [hp(E)] to watts [W] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.
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Gigawatts
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Joules per hour
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