Convert Power

Here you can convert units like terawatt, gigawatt, megawatt, kilowatt, etc. within the power category.

From

Unit	Value	Actions
terawatt TW
gigawatt GW
megawatt MW
kilowatt kW
metric horsepower hk
watt W
milliwatt mW
microwatt µW
nanowatt nW

Unit	Value	Actions
british thermal unit per second BTU/s
horsepower hp
british thermal unit per minute BTU/min
foot pound-force per second ft×lbf/s
british thermal unit per hour BTU/h

Unit	Value	Actions
kilocalorie per hour kcal/h
calorie per hour cal/h

Quick conversion quiz

Score: 0

8 british thermal unit per hour equals 0.00319 metric horsepower.

5.4 watt equals 5.4e-6 megawatt.

8.6 british thermal unit per minute equals 0.226 metric horsepower.

129 metric horsepower equals 5.94e+3 british thermal unit per minute.

14.2 milliwatt equals 1.93e-5 metric horsepower.

Definitions

metric horsepower (hk)

Unit of power, approx 735.5 watts.

The metric horsepower (PS, hk, ch) is defined as the power to lift a mass of 75 kg by 1 meter in 1 second. It is approximately 735.5 watts. It differs slightly from the imperial mechanical horsepower.

watt (W)

SI derived unit of power. 1 joule per second.

The watt (W) is the unit of power in the International System of Units (SI). It is defined as a derived unit of 1 joule per second. It is used to quantify the rate of energy transfer.

horsepower (hp)

Imperial unit of power, approx 745.7 watts.

Mechanical horsepower (hp), also known as imperial horsepower, is defined as approximately 745.7 watts. It is based on lifting 550 pounds by 1 foot in 1 second.

Frequently asked questions

What is the difference between kW and kWh?

kW measures power (rate). kWh measures energy over time. Example: 2 kW used for 3 hours equals 6 kWh.

How many watts are in a kilowatt?

1 kilowatt equals exactly 1000 watts.

How do I convert horsepower to kilowatts?

1 mechanical horsepower is about 0.7457 kW. Multiply hp by 0.7457 to get kW.

How do I convert watts to horsepower?

1 mechanical horsepower is about 745.7 W. Divide watts by 745.7 to get hp.

How are volts, amps, and watts related?

For DC circuits: watts = volts × amps. For AC systems, power factor may also matter depending on the load.

Why does a device show a higher “peak” power than its rated power?

Peak power is a short burst maximum. Rated/continuous power is what it can sustain safely over time.

How do I use the power converter on konvertera.nu?

Enter a value (like hp), choose the target unit (like kW), and the converter calculates the equivalent power.