Megawatts to kilowatts (MW to kW) converter

What is a megawatts to kilowatts converter?

A megawatts to kilowatts converter is an online tool that translates a quantity of power expressed in megawatts (MW) into its equivalent in kilowatts (kW), and back again. Both units belong to the metric system and measure the same physical quantity — the rate at which energy is produced, transferred, or consumed. The only difference between them is scale: the megawatt is one of the larger SI multiples of the watt, while the kilowatt is a smaller one. Because power-plant output, industrial loads, and grid capacity are often quoted in megawatts while everyday equipment ratings are given in kilowatts, switching between the two units is a routine task in engineering, energy management, and utility planning.

How does the converter work?

The watt (W) is the SI base unit of power, equal to one joule per second. Every other unit on this converter is defined as a fixed multiple of the watt:

• 1 megawatt (MW) = 1,000,000 watts = 1,000 kilowatts
• 1 kilowatt (kW) = 1,000 watts

Because both megawatts and kilowatts are simply powers of ten of the same base unit, the relationship between them is exact: there are always 1,000 kilowatts in one megawatt. To go from megawatts to kilowatts you multiply by 1,000; to go from kilowatts to megawatts you divide by 1,000. The converter also supports horsepower (hp) and watts (W), so you can move between the metric units and the mechanical horsepower used in many machinery specifications.

Formula for conversion

To convert megawatts to kilowatts, multiply by 1,000:

$\text{kW} = \text{MW} \times 1000$

To convert kilowatts back to megawatts, divide by 1,000 (or multiply by 0.001):

$\text{MW} = \text{kW} \div 1000$

To convert megawatts to mechanical horsepower, use the definition 1 hp = 745.699872 W:

$\text{hp} = \frac{\text{MW} \times 1{,}000{,}000}{745.699872}$

Megawatts to kilowatts conversion table

The following table shows common megawatt values and their kilowatt (kW) equivalents:

Examples

Example 1: Converting 1 megawatt to kilowatts

A small solar farm is rated at 1 MW. To express this in kilowatts, multiply by 1,000:

$1 \text{ MW} \times 1000 = 1000 \text{ kW}$

So a 1 MW installation has a capacity of 1,000 kilowatts.

Example 2: Converting 2.5 megawatts to kilowatts

A wind turbine produces 2.5 MW at full output. Converting to kilowatts:

$2.5 \text{ MW} \times 1000 = 2500 \text{ kW}$

The turbine delivers 2,500 kilowatts.

Example 3: Converting 1,000 kilowatts to megawatts

An industrial plant draws a peak load of 1,000 kW. To express this in megawatts, divide by 1,000:

$1000 \text{ kW} \div 1000 = 1 \text{ MW}$

The plant’s peak demand is exactly 1 megawatt.

Example 4: Converting 1 megawatt to horsepower

To compare a 1 MW generator with mechanical equipment rated in horsepower, divide the equivalent wattage by 745.699872:

$\frac{1{,}000{,}000 \text{ W}}{745.699872} \approx 1341.022 \text{ hp}$

So 1 megawatt is roughly 1,341 mechanical horsepower.

Notes

• The megawatt-to-kilowatt relationship is exact (1 MW = 1,000 kW); no rounding is introduced by the conversion itself.
• Power (measured in watts) is different from energy (measured in watt-hours). A 1 MW plant running for one hour produces 1 megawatt-hour (MWh) of energy. Do not confuse MW with MWh.
• The horsepower used here is the mechanical horsepower (about 745.7 W). Metric horsepower (PS) is slightly smaller, at about 735.5 W.
• Keeping consistent units across a project helps avoid costly errors in load calculations and equipment sizing.

Frequently asked questions

How many kilowatts are in 1 megawatt?

There are exactly 1,000 kilowatts in 1 megawatt, because the prefix “mega” means one million watts and “kilo” means one thousand watts.

How do I convert megawatts to kilowatts?

Multiply the number of megawatts by 1,000. For example, 2.5 MW × 1,000 = 2,500 kW.

How do I convert kilowatts back to megawatts?

Divide the number of kilowatts by 1,000 (or multiply by 0.001). For example, 5,000 kW ÷ 1,000 = 5 MW. To go the other way, you can use our kilowatt to megawatt converter.

Is a megawatt the same as a megawatt-hour?

No. A megawatt (MW) measures power — the rate of energy use — while a megawatt-hour (MWh) measures the total energy produced or consumed over time. A 1 MW source running for one hour yields 1 MWh.

How many horsepower is 1 megawatt?

One megawatt equals approximately 1,341 mechanical horsepower, found by dividing 1,000,000 watts by 745.699872 W per horsepower.

How many watts are in a kilowatt?

There are 1,000 watts in one kilowatt. To break a kilowatt down into watts, use our kilowatts to watts converter.