Kilowatt-hours to megawatt-hours
Type a value in kilowatt-hours to see it in megawatt-hours straight away, or type in the second box to convert back.
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How to use it
- Type the value in the kilowatt-hours box.
- Read the result in megawatt-hours as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
MWh = kWh × 0.001
Multiply the value in kilowatt-hours by 0.001 to get megawatt-hours.
Example
To convert 25 kWh to megawatt-hours: 25 × 0.001 = 0.025 MWh.
Conversion table
| Kilowatt-hours (kWh) | Megawatt-hours (MWh) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About the units
- Kilowatt-hour
- The energy used by a 1000 watt device in one hour, exactly 3.6 million joules. Electricity bills are charged in this unit.
- Megawatt-hour
- Equal to 1000 kilowatt-hours, exactly 3.6 billion joules, used for power plant and solar farm output.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many megawatt-hours are in one kilowatt-hour?
1 kWh = 0.001 MWh exactly.
How do I convert kilowatt-hours to megawatt-hours?
Use MWh = kWh × 0.001. For example, 25 kWh = 0.025 MWh.
How many kilowatt-hours are in one megawatt-hour?
1 MWh = 1,000 kWh.
Which calorie do these converters use?
The thermochemical calorie, exactly 4.184 joules, the factor many countries use to turn kcal into kJ on food labels. The International Table calorie is 4.1868 joules, less than 0.07% larger.
What is the difference between kW and kWh?
A kilowatt is a unit of power, the rate of using energy, while a kilowatt-hour is an amount of energy. A 2 kW heater running for three hours uses 6 kWh.