Milliwatt Converter
Created by: tinycalcs.com/en
Number of supported units: 24
Last update: 2026
The Milliwatt Converter supports 24 different power units. This makes it possible to convert freely between milliwatts [mW], metric, Anglo-American, and other power units. All power values are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of milliwatts
In order to convert milliwatts [mW] into another unit of measurement, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for milliwatts [mW] to be queried directly from the conversion table.
Determine conversion factor
Conversion between milliwatts and watts
A quick and precise conversion between milliwatts [mW] and watts [W] is straightforward and requires only multiplication or division by 1,000. The conversion from watts [W] to milliwatts [mW] is done by multiplying the value in watts [W] by 1,000. To reverse the conversion, divide the value in milliwatts [mW] by 1,000 to obtain watts [W].
- Milliwatts [mW] = watts [W] * 1,000
- Watts [W] = milliwatts [mW] ÷ 1,000
Conversion between milliwatts and kilowatts
Conversions between milliwatts [mW] and kilowatts [kW] are straightforward and can be performed with simple math. The required conversion factor is 1,000,000. To convert a value from kilowatts [kW] to milliwatts [mW], multiply the number of kilowatts [kW] by 1,000,000. For values in milliwatts [mW], divide by 1,000,000 to get the equivalent in kilowatts [kW].
- Milliwatts [mW] = kilowatts [kW] * 1,000,000
- Kilowatts [kW] = milliwatts [mW] ÷ 1,000,000
Conversion between milliwatts and metric horsepower
The conversion between milliwatts [mW] and metric horsepower [PS] is quick to perform and requires only basic mathematical operations an the conversion factor 735,498.75. Multiply the number of metric horsepower [PS] by 735,498.75 to get the converted value in milliwatts [mW]. To convert a value in milliwatts [mW] back to metric horsepower [PS], simply divide the amount of milliwatts [mW] by 735,498.75.
- Milliwatts [mW] = metric horsepower [PS] * 735,498.75
- Metric horsepower [PS] = milliwatts [mW] ÷ 735,498.75
Conversion between milliwatts and mechanical horsepower
You can easily convert between mechanical horsepower [hp(I)] and milliwatts [mW] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Milliwatts [mW] = mechanical horsepower [hp(I)] * 272.155422 * 2,739.97801
- Mechanical horsepower [hp(I)] = milliwatts [mW] ÷ 272.155422 ÷ 2,739.97801
Conversion between milliwatts and kilojoules per minute
The fastest and easiest way to convert between milliwatts [mW] and kilojoules per minute [kJ/min] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Kilojoules per minute [kJ/min] = milliwatts [mW] * 6 ÷ 105
- Milliwatts [mW] = kilojoules per minute [kJ/min] ÷ 6 * 105
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