Convert energy units — joules, kilowatt-hours, calories, BTU, electron volts and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 kWh | 1e-06 MWh | |
| 0.01 kWh | 1e-05 MWh | |
| 0.1 kWh | 0.0001 MWh | |
| 1 kWh | 0.001 MWh | |
| 5 kWh | 0.005 MWh | |
| 10 kWh | 0.01 MWh | |
| 50 kWh | 0.05 MWh | |
| 100 kWh | 0.1 MWh | |
| 1000 kWh | 1 MWh |
Formula: Megawatt-Hour = Kilowatt-Hour × 0.001
Multiply any kilowatt-hour value by 0.001 to get megawatt-hour.
Reverse: Kilowatt-Hour = Megawatt-Hour × 1000
Common kilowatt-hour values — factor: 1 kWh = 0.001 MWh
| Kilowatt-Hour (kWh) | Megawatt-Hour (MWh) | Context |
|---|---|---|
| 0.001 kWh | 1.000e-06 MWh | 1 Wh |
| 0.01 kWh | 1.000e-05 MWh | 10 Wh |
| 0.1 kWh | 0.0001 MWh | Phone charge |
| 0.5 kWh | 0.0005 MWh | Half kWh |
| 1 kWh | 0.001 MWh | 1 kWh |
| 5 kWh | 0.005 MWh | 5 kWh |
| 10 kWh | 0.01 MWh | Washing machine |
| 30 kWh | 0.03 MWh | Daily home use |
| 100 kWh | 0.1 MWh | Monthly fraction |
| 500 kWh | 0.5 MWh | EV range |
| 1,000 kWh | 1 MWh | Monthly home |
| 1e+04 kWh | 10 MWh | Annual home |
| 1e+05 kWh | 100 MWh | Large commercial |
| 1e+06 kWh | 1,000 MWh | Small factory |
| 1.000e+09 kWh | 1e+06 MWh | Power plant day |
kWh ÷ 1,000 = MWh. Exact.
Simple mega prefix.
MWh × 1,000 = kWh.
Reads monthly bills and compares appliance energy use in kWh.
Sizes solar systems based on kWh consumption and production estimates.
Tracks charging cost and range efficiency in kWh per 100 km.
Measures building energy consumption and identifies savings in kWh.
Plans grid capacity, demand response, and billing in kWh and MWh.
Monitors real-time appliance consumption in kWh via smart meters.
The kilowatt-hour (kWh) is the commercial unit of electrical energy, equal to the energy consumed by a 1,000-watt appliance in one hour (3,600,000 joules). It became standard with the growth of the electrical grid in the late 19th century.
Electricity bills worldwide are denominated in kWh. A typical household uses 300–1,000 kWh per month. An electric car uses about 15–25 kWh per 100 km. Solar panels generate 250–400 kWh per year per panel.
Interesting fact: The average price of electricity in the US is about $0.12 per kWh. One kWh can run a 100W light bulb for 10 hours, charge a smartphone about 100 times, or power a laptop for 2-3 days.
The megawatt-hour (MWh) equals 1,000 kWh or 3.6 × 10⁹ joules. It is the standard unit for utility-scale electricity generation, large industrial consumers, and grid-level energy storage.
Power plants, wind farms, and solar installations are rated and billed in MWh. A 2 MW wind turbine generates about 6 MWh per day on average. Large data centers consume thousands of MWh per month.
Interesting fact: The Hoover Dam generates about 4,000 MWh per hour. A single nuclear power plant produces about 8,000 MWh per hour. World electricity consumption is approximately 25,000 TWh (25 billion MWh) per year.
Converting kilowatt-hour to megawatt-hour is common across energy, nutrition, engineering, and science. Different sectors use different energy units — joules in physics, kcal in nutrition, kWh in electricity, and BTU in HVAC — making accurate conversion essential for cross-disciplinary work and international comparisons.
Quick reference: 5 kWh = 0.005 MWh and 10 kWh = 0.01 MWh. Reverse: 1 MWh = 1000 kWh. Exact factor: 1 kWh = 0.001 MWh.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.