kW to MW Calculator
Convert kW to MW for utility, solar farm, and industrial-scale power. 1 MW = 1,000 kW. Live calculator.
Common conversions
| Input | Result |
|---|---|
| 100 kW | 0.1 MW |
| 500 kW | 0.5 MW |
| 1,000 kW | 1 MW |
| 2,500 kW | 2.5 MW |
| 5,000 kW | 5 MW |
| 10,000 kW | 10 MW |
| 25,000 kW | 25 MW |
| 50,000 kW | 50 MW |
| 100,000 kW | 100 MW |
| 500,000 kW | 500 MW |
The math behind it
- MW = 18750 / 1000
- MW = 18.75
Everything you need to know
A megawatt is 1,000 kilowatts, so converting kW to MW means dividing by 1,000. The math is trivial; what takes practice is recognizing when a number has grown large enough that it belongs in megawatts, which is the standard unit for power plants, substations, and grid-scale renewable projects.
Kilo, mega, and the rest of the power scale
Every step on the metric power scale is a factor of 1,000: a watt is the base unit, a kilowatt is 1,000 watts, and a megawatt is 1,000 kilowatts, or 1,000,000 watts. Going further, a gigawatt is 1,000 megawatts, the scale used for entire regional grids. Kilowatts describe individual buildings and equipment; megawatts describe the power plants, substations, and transmission infrastructure that serve many buildings at once. Because a single MW equals a full 1,000 kW, industrial and utility documents that mix the two units require careful attention to which one is being used.
What megawatt-scale power actually looks like
A typical utility-scale solar farm is rated between 1 and 50 MW, with many community-scale projects landing around 5 to 20 MW. A single onshore wind turbine is rated 2 to 6 MW, so a 100 MW wind farm might have 20 to 40 turbines. A large coal or gas power plant runs from 500 MW up past 1,000 MW; a single large plant can supply the equivalent of several hundred thousand homes. A data center campus, meanwhile, can draw anywhere from 20 to 100 MW or more, which is why new hyperscale campuses are increasingly discussed in the same terms as small power plants. Below all of that, individual buildings, feeders, and industrial sites are metered and billed in kW, which is the number that eventually gets rolled up into these MW-scale totals.
Worked example: rolling up plant demand into megawatts
An industrial complex has several sub-meters reporting a combined peak demand of 18,750 kW. To report that figure the way a utility interconnection agreement expects, divide by 1,000: 18,750 / 1,000 = 18.75 MW. That MW figure is what gets compared against the site's contracted grid capacity or a proposed on-site generation project.
Common applications
Renewable project pipelines and interconnection queues are tracked in MW. Converting a site's summed kW DC array rating to MW is required before comparing it against grid capacity limits.
Large facilities such as paper mills and smelters meter individual feeders in kW but report total site demand in MW to the utility for rate and capacity planning purposes.
Generating stations list their nameplate output in MW. Engineers working at the equipment level convert individual generator or turbine kW ratings up to MW to compare against the plant total.
New generation or large loads seeking to connect to the grid must express their capacity in MW to match the units used in utility interconnection studies and transmission planning documents.
Common mistakes
MW measures instantaneous power; MWh measures energy delivered over time. A 100 MW plant running for 24 hours produces 2,400 MWh, a completely different quantity from its 100 MW rating.
Dividing 45,000 kW by 100 instead of 1,000 gives a false 450 MW instead of the correct 45 MW, an order-of-magnitude error that can badly distort a capacity planning document.
A 20 MW solar farm's nameplate capacity is its maximum output under ideal sun; its actual average output, accounting for a capacity factor of roughly 20 to 30 percent, is much lower.
A quick skim of a utility document can blur 850 kW and 850 MW, but the second figure is 1,000 times larger. Always check the unit label before comparing numbers across documents.
Frequently asked questions
How many kW are in 1 MW?+
1,000 kW equal 1 MW. The mega- prefix represents a factor of 1,000 over kilo-, the same relationship kilo- has over the base unit.
How do I convert kW to MW by hand?+
Move the decimal point three places to the left. 45,000 kW becomes 45 MW, and 800 kW becomes 0.8 MW.
Is a 5,000 kW solar farm the same as a 5 MW solar farm?+
Yes. 5,000 kW divided by 1,000 equals 5 MW; both describe the identical nameplate capacity, just in different units.
How many MW is a typical utility-scale solar farm?+
Most utility-scale solar farms fall between 1 and 50 MW, with many community and mid-size projects in the 5 to 20 MW range.
How many MW does a large coal power plant produce?+
Large coal and gas plants typically run 500 to 1,200 MW, which is 500,000 to 1,200,000 kW at the plant's full electrical output.
Do data centers really use megawatts of power?+
Yes. A large data center campus can draw 20 to 100 MW or more, putting its electrical demand on the same scale as a small power plant.
Is 1 MW the same as 1,000,000 watts?+
Yes. A megawatt equals 1,000 kilowatts, and each kilowatt equals 1,000 watts, so 1 MW is 1,000,000 W.
Why do utility documents mix kW and MW in the same report?+
Individual buildings and feeders are metered in kW, while system-wide or plant-level totals are reported in MW; both units appear together whenever a document rolls up smaller loads into a system total.
How many homes can 1 MW of generation power?+
Roughly 750 to 1,000 average US homes at any given moment, though the exact figure depends on regional consumption patterns and the time of day.