Power Units

Find the right formula and tools for all power units. We use official rules to make sure every calculation is correct.

All Power Unit Pairs

Pick a starting unit to see all possible conversion tools for power.

We calculate all power units based on the standard Watts (W). This helps us keep all our tools accurate and reliable.

Below is the list of rules we use to calculate each power unit. You can use these to understand the math behind our tools.

Formula: 1 Milliwatts = 0.001 Watts
To do the math instantly, use our milliwatts to watts or watts to milliwatts tools.

Formula: 1 Kilowatts = 1000 Watts
To do the math instantly, use our kilowatts to watts or watts to kilowatts tools.

Formula: 1 Megawatts = 1000000 Watts
To do the math instantly, use our megawatts to watts or watts to megawatts tools.

Formula: 1 Gigawatts = 1000000000 Watts
To do the math instantly, use our gigawatts to watts or watts to gigawatts tools.

Formula: 1 Horsepower = 745.7 Watts
To do the math instantly, use our horsepower to watts or watts to horsepower tools.

Formula: 1 Metric Horsepower = 735.498 Watts
To do the math instantly, use our metric horsepower to watts or watts to metric horsepower tools.

Formula: 1 BTU/hour = 0.293071 Watts
To do the math instantly, use our btu/hour to watts or watts to btu/hour tools.

Formula: 1 Tons = 3516.85 Watts
To do the math instantly, use our tons to watts or watts to tons tools.

Formula: 1 Kilovolt-amperes = 1000 Watts
To do the math instantly, use our kilovolt-amperes to watts or watts to kilovolt-amperes tools.

Compare these units against other measurement systems on our homepage.

Access our high-fidelity calculators for other measurement systems and engineering metrics.