KWH to MWH Converter
Type a value in kilowatt-hours to see it in megawatt-hours as you type, with the exact formula and a reference chart.
Free, no sign-upRuns in your browserHow we calculate
How this was calculated
- 1 megawatt-hour = 1,000 kilowatt-hours
- 4,500 ÷ 1,000 = 4.5 MWh
| kWh | MWh |
|---|---|
| 1 kWh | 0.001 MWh |
| 10 kWh | 0.01 MWh |
| 100 kWh | 0.1 MWh |
| 500 kWh | 0.5 MWh |
| 1,000 kWh | 1 MWh |
| 2,500 kWh | 2.5 MWh |
| 5,000 kWh | 5 MWh |
| 10,000 kWh | 10 MWh |
| 50,000 kWh | 50 MWh |
| 100,000 kWh | 100 MWh |
| 1,000,000 kWh | 1,000 MWh |
| MWh | kWh |
|---|---|
| 0.001 MWh | 1 kWh |
| 0.002 MWh | 2 kWh |
| 0.005 MWh | 5 kWh |
| 0.01 MWh | 10 kWh |
| 0.02 MWh | 20 kWh |
| 0.05 MWh | 50 kWh |
| 0.1 MWh | 100 kWh |
| 0.2 MWh | 200 kWh |
| 0.5 MWh | 500 kWh |
| 1 MWh | 1,000 kWh |
| 2 MWh | 2,000 kWh |
| 5 MWh | 5,000 kWh |
How to convert kilowatt-hours to megawatt-hours
1 kilowatt-hour = 0.001 megawatt-hours. To convert kilowatt-hours to megawatt-hours, divide by 1,000 (or multiply by 0.001). A kilowatt-hour is the energy of 1 kW running for one hour, exactly 3.6 million joules. A megawatt-hour is 1,000 kilowatt-hours, exactly 3.6 billion joules.
Worked examples
- 1,000 kilowatt-hours = 1 MWh (1,000 ÷ 1,000)
- 4,500 kilowatt-hours = 4.5 MWh (4,500 ÷ 1,000)
- 250,000 kilowatt-hours = 250 MWh (250,000 ÷ 1,000)
Where this conversion comes up
Kilowatt-hours are used for electricity bills, home batteries and EV charging; megawatt-hours for power plant output, utility-scale batteries and industrial electricity use. Household bills quote kWh, while utilities, solar farms and industrial contracts quote MWh. A US home uses roughly 10 MWh a year (about 10,000 kWh). 1 MWh is exactly 1,000 kWh; do not confuse it with MW, a unit of power rather than energy.
Quick estimate
Move the decimal point three places left: 7,200 kWh = 7.2 MWh.
Common mistakes
- Multiplying instead of dividing. A megawatt-hour is larger than a kilowatt-hour, so the number of megawatt-hours must come out smaller: 1,000 kilowatt-hours = 1 MWh.
Related energy converters: kj to calories, kcal to kj, kj to kcal.
Frequently asked questions
How do you convert kilowatt-hours to megawatt-hours?
Multiply the kilowatt-hours by 0.001 (or divide by 1,000). For example, 4,500 kilowatt-hours is 4.5 megawatt-hours.
How many megawatt-hours are in one kilowatt-hour?
One kilowatt-hour is 0.001 megawatt-hours. A kilowatt-hour is the energy of 1 kW running for one hour, exactly 3.6 million joules.
What is 250,000 kilowatt-hours in megawatt-hours?
250,000 kilowatt-hours is 250 megawatt-hours.
Is there a quick way to estimate kilowatt-hours to megawatt-hours?
Move the decimal point three places left: 7,200 kWh = 7.2 MWh.