Electrical horsepower to Milliwatt Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert electrical horsepower [hp(E)] to milliwatts [mW] or milliwatts [mW] to electrical horsepower [hp(E)]. 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 electrical horsepower to milliwatts
There are two simple ways to convert electrical horsepower [hp(E)] to milliwatts [mW]. In the first calculation method, the value in electrical horsepower [hp(E)] is divided by the rounded conversion factor of 1.34 * 10-6. The second method multiplies the value in electrical horsepower [hp(E)] by 746,000.
- Milliwatts [mW] ≈ electrical horsepower [hp(E)] ÷ (1.34 * 10-6)
- Milliwatts [mW] = electrical horsepower [hp(E)] * 746,000
The calculation method with a rounded conversion value is more suitable for rough conversions from electrical horsepower [hp(E)] to milliwatts [mW], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.
Convert milliwatts to electrical horsepower
Converting milliwatts [mW] to electrical horsepower [hp(E)] is easy and can be done in two ways. The first method involves multiplication, in which the value in milliwatts [mW] is multiplied by the rounded conversion factor of 1.34 * 10-6. The second variant is a division. Here, the value in milliwatts [mW] is divided by 746,000.
- Electrical horsepower [hp(E)] ≈ milliwatts [mW] * 1.34 * 10-6
- Electrical horsepower [hp(E)] = milliwatts [mW] ÷ 746,000
The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from milliwatts [mW] to electrical horsepower [hp(E)] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.
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Electrical horsepower
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Electrical horsepower
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