Power Unit Conversion Calculator

POWER CONVERTER

The Power Conversion Calculator will convert among different units of power including Watt, kW, MW, GW, hp, BTU and calories.

Power Unit Conversion

kW
hp


Power Conversion Calculator FAQ
You can convert between the following units of power: gigawatts, megawatts, kilowatts, watts, milliwatts, horsepower, horsepower (metric), BTU/h, calorie/h.

How shall I use the Power Unit Converter?

Select the unit of power you want to convert from, then the unit you want to convert to. Next, enter the power value you want to convert. The power unit conversion happens immediately. Our Power Conversion Calculator works in both directions: If you enter a value in the other field, it can also change the unit back from it. You can also decide how many decimal places you would like to see in the result.

How shall I convert between units of power?

Conversion between power units usually involves a simple multiplication or division. You only have to know the correct conversion rate. This piece of information is enough to be able to convert 1 mile to km. Let’s take a simple example!

Let’s say that you want to find out how many kilowatts are 200 horsepower. We know that 1 horsepower (hp) = 0.7457 kilowatts (kW) (so this is the conversion rate between horsepower and kilowatt). So if you want to calculate how many kilowatts 200 horsepower are, you need to do the following:

  1. You only have to multiply 200 with the conversion rate (i.e. with 0.7457).
  2. The result 149.14, so 200 horsepower (hp) = 149.14 kilowatt (kW).

OK, but what if you want to make a power conversion in the opposite direction? If you want to convert from kilowatts to horsepower, you have to use the conversion rate mentioned above. Yet, this is the opposite direction, so instead of multiplication, we use the conversion rate for division. In this example it means:

You would like to know how many horsepowers 149.14 kilowatts are.

  1. Divide 149.14 by 0.7457.
  2. The result is 200 (g).

Power Conversion Chart

These are the most common and most frequently searched power unit conversions:

(Results are rounded to 4 digits.)

GIGAWATT (GW)
1 gigawatt (GW) = 1000 megawatts (MW)
1 gigawatt (GW) = 1000000 kilowatts (kW)
1 gigawatt (GW) = 1000000000 watts (W)
1 gigawatt (GW) = 1000000000000 milliwatts (mW)
1 gigawatt (GW) = 1341022.0896 horsepower (hp)
1 gigawatt (GW) = 1359621.6173 horsepower (metric) (hpm)
1 gigawatt (GW) = 3412141633.1279 BTU/h (BTU/h)
1 gigawatt (GW) = 859845227858.99 calorie/h (cal/h)

MEGAWATT (MW)
1 megawatt (MW) = 0.001 gigawatts (GW)
1 megawatt (MW) = 1000 kilowatts (kW)
1 megawatt (MW) = 1000000 watts (W)
1 megawatt (MW) = 1000000000 milliwatts (mW)
1 megawatt (MW) = 1341.0221 horsepower (hp)
1 megawatt (MW) = 1359.6216 horsepower (metric) (hpm)
1 megawatt (MW) = 3412141.6331 BTU/h (BTU/h)
1 megawatt (MW) = 859845227.859 calorie/h (cal/h)

KILOWATT (kW)
1 kilowatt (kW) = 0 gigawatts (GW)
1 kilowatt (kW) = 0.001 megawatts (MW)
1 kilowatt (kW) = 1000 watts (W)
1 kilowatt (kW) = 1000000 milliwatts (mW)
1 kilowatt (kW) = 1.341 horsepower (hp)
1 kilowatt (kW) = 1.3596 horsepower (metric) (hpm)
1 kilowatt (kW) = 3412.1416 BTU/h (BTU/h)
1 kilowatt (kW) = 859845.2279 calorie/h (cal/h)

WATT (W)
1 watt (W) = 0 gigawatts (GW)
1 watt (W) = 0 megawatts (MW)
1 watt (W) = 0.001 kilowatts (kW)
1 watt (W) = 1000 milliwatts (mW)
1 watt (W) = 0.0013 horsepower (hp)
1 watt (W) = 0.0014 horsepower (metric) (hpm)
1 watt (W) = 3.4121 BTU/h (BTU/h)
1 watt (W) = 859.8452 calorie/h (cal/h)

MILLIWATT (mW)
1 milliwatt (mW) = 0 gigawatts (GW)
1 milliwatt (mW) = 0 megawatts (MW)
1 milliwatt (mW) = 0 kilowatts (kW)
1 milliwatt (mW) = 0.001 watts (W)
1 milliwatt (mW) = 0 horsepower (hp)
1 milliwatt (mW) = 0 horsepower (metric) (hpm)
1 milliwatt (mW) = 0.0034 BTU/h (BTU/h)
1 milliwatt (mW) = 0.8598 calorie/h (cal/h)

HORSEPOWER (hp)
1 horsepower (hp) = 0 gigawatts (GW)
1 horsepower (hp) = 0.0007 megawatts (MW)
1 horsepower (hp) = 0.7457 kilowatts (kW)
1 horsepower (hp) = 745.6999 watts (W)
1 horsepower (hp) = 745699.8716 milliwatts (mW)
1 horsepower (hp) = 1.0139 horsepower (metric) (hpm)
1 horsepower (hp) = 2544.4336 BTU/h (BTU/h)
1 horsepower (hp) = 641186.476 calorie/h (cal/h)

HORSEPOWER (METRIC) (hpm)
1 horsepower (metric) (hpm) = 0 gigawatts (GW)
1 horsepower (metric) (hpm) = 0.0007 megawatts (MW)
1 horsepower (metric) (hpm) = 0.7355 kilowatts (kW)
1 horsepower (metric) (hpm) = 735.4988 watts (W)
1 horsepower (metric) (hpm) = 735498.75 milliwatts (mW)
1 horsepower (metric) (hpm) = 0.9863 horsepower (hp)
1 horsepower (metric) (hpm) = 2509.6259 BTU/h (BTU/h)
1 horsepower (metric) (hpm) = 632415.0903 calorie/h (cal/h)

BTU/H (BTU/h)
1 BTU/h (BTU/h) = 0 gigawatts (GW)
1 BTU/h (BTU/h) = 0 megawatts (MW)
1 BTU/h (BTU/h) = 0.0003 kilowatts (kW)
1 BTU/h (BTU/h) = 0.2931 watts (W)
1 BTU/h (BTU/h) = 293.0711 milliwatts (mW)
1 BTU/h (BTU/h) = 0.0004 horsepower (hp)
1 BTU/h (BTU/h) = 0.0004 horsepower (metric) (hpm)
1 BTU/h (BTU/h) = 251.9958 calorie/h (cal/h)

CALORIE/H (cal/h)
1 calorie/h (cal/h) = 0 gigawatts (GW)
1 calorie/h (cal/h) = 0 megawatts (MW)
1 calorie/h (cal/h) = 0 kilowatts (kW)
1 calorie/h (cal/h) = 0.0012 watts (W)
1 calorie/h (cal/h) = 1.163 milliwatts (mW)
1 calorie/h (cal/h) = 0 horsepower (hp)
1 calorie/h (cal/h) = 0 horsepower (metric) (hpm)
1 calorie/h (cal/h) = 0.004 BTU/h (BTU/h)

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