MW to kW Calculator
Convert megawatts to kilowatts. 1 MW = 1,000 kW. Live calculator with utility-scale examples.
Common conversions
| Input | Result |
|---|---|
| 0.1 MW | 100 kW |
| 0.5 MW | 500 kW |
| 1 MW | 1,000 kW |
| 2.5 MW | 2,500 kW |
| 5 MW | 5,000 kW |
| 10 MW | 10,000 kW |
| 25 MW | 25,000 kW |
| 50 MW | 50,000 kW |
| 100 MW | 100,000 kW |
| 500 MW | 500,000 kW |
The math behind it
- kW = 42.5 × 1000
- kW = 42500
Everything you need to know
A megawatt equals 1,000 kilowatts, so converting MW to kW means multiplying by 1,000. Engineers need this direction constantly because plant and grid capacity is planned and quoted in MW, while the feeders, transformers, and equipment that actually deliver that power are specified in kW.
Mega, kilo, and the rest of the power scale
The metric power scale moves in steps of exactly 1,000: a watt is the base unit, a kilowatt is 1,000 watts, and a megawatt is 1,000 kilowatts, equal to 1,000,000 watts. Above megawatts sits the gigawatt, 1,000 MW, used for describing entire grid regions. Utilities plan and report at the MW and GW level, but the moment that capacity gets divided across substations, feeders, and individual customer connections, the working unit drops back down to kW.
Breaking megawatt-scale capacity down to kW
A substation might be rated for 50 MW of throughput, but the engineering documents for each feeder leaving that substation list capacity in kW, since individual commercial and industrial customers draw anywhere from a few hundred kW up to a few thousand. A utility-scale solar farm rated at 20 MW is really built from thousands of individual strings and inverters, each rated in kW, that add up to the MW total. A wind farm rated at 100 MW typically consists of 20 to 40 turbines, each contributing 2,000 to 6,000 kW (2-6 MW). Converting the MW-level project total down to kW is what lets engineers size the individual transformers, breakers, and cables that make up the system.
Worked example: sizing feeders for a wind farm
A wind farm has a nameplate capacity of 42.5 MW and needs that figure translated into kW for the collector-system engineering drawings. Multiply: 42.5 × 1,000 = 42,500 kW. That kW total can then be divided across the site's turbines and feeders, each of which is specified using the smaller unit.
Common applications
Utility documents quote substation and transformer capacity in MW, while engineering load lists for individual feeders use kW. Converting between the two confirms that the sum of feeder loads stays under the substation rating.
Power-purchase agreements price energy per MWh at the contract level, but distributed-energy and dispatch software often works in kW intervals, so converting the MW project capacity to kW is needed to merge the two datasets.
A wind or solar farm's MW nameplate capacity gets divided across dozens of turbines or inverter blocks, each specified in kW, when engineers design the on-site collector and feeder system.
Projects entering a utility's interconnection queue are tracked in MW at the portfolio level, but the detailed equipment specifications submitted for review, such as transformer and breaker ratings, are written in kW.
Common mistakes
1 MW equals 1,000 kW, which equals 1,000,000 W. Skipping a zero when moving between these units in a spreadsheet is a common, costly error in utility-scale work.
MW is instantaneous power; MWh is energy over time. Converting a 20 MW plant to kW gives 20,000 kW of capacity, which says nothing about how many MWh it produces in a day.
A 50 MW plant converted to 50,000 kW represents peak capacity, not typical output. Solar and wind sites in particular run well below nameplate most of the time due to weather and time of day.
Some utility filings list both totals side by side. Treating an 80 MW figure as 80 kW, or vice versa, understates or overstates the real capacity by a factor of 1,000.
Frequently asked questions
How many kW are in 1 MW?+
1 MW equals 1,000 kW. Multiplying any MW figure by 1,000 gives the equivalent value in kilowatts.
How do I convert MW to kW by hand?+
Move the decimal point three places to the right. 3.2 MW becomes 3,200 kW, and 0.75 MW becomes 750 kW.
Is a 42.5 MW wind farm the same as 42,500 kW?+
Yes. 42.5 MW multiplied by 1,000 equals 42,500 kW; both numbers describe the same nameplate capacity in different units.
How many kW are in a gigawatt?+
1 gigawatt equals 1,000 MW, which equals 1,000,000 kW. Each step up the metric scale multiplies by another 1,000.
Why do substations get rated in MW but feeders in kW?+
A substation serves many customers at once, so its total throughput is large enough to report in MW, while individual feeders and customer connections draw far less power and are more naturally expressed in kW.
Does converting MW to kW change the actual power delivered?+
No. It only changes the unit used to express the same physical quantity; 2.5 MW and 2,500 kW are identical amounts of power.
How many kW does a single wind turbine produce?+
Most onshore wind turbines are rated between 2,000 and 6,000 kW (2-6 MW) each, so a 100 MW wind farm typically has 20 to 40 turbines.
Is nameplate MW capacity the same as the power a plant actually delivers?+
No. Nameplate capacity in MW is the maximum rated output; actual average delivery, especially for solar and wind, is lower due to the site's capacity factor, commonly 20 to 45 percent depending on the resource.
How many kW is a typical power-purchase agreement quoted in?+
Power-purchase agreements usually price energy per MWh at the contract level, but the underlying interval data used for billing and dispatch is often tracked in kW, so converting MW project totals to kW is a routine step in that modeling.