Megawatts to watts (MW to W) converter

What is a megawatts to watts converter?

A megawatts to watts converter is an online tool that translates power expressed in megawatts (MW) into the equivalent number of watts (W), and the reverse. Both units measure the same physical quantity: the rate at which energy is produced or consumed. The watt is the base unit of power in the International System of Units (SI), while the megawatt is simply a very large multiple of it. Because power plants, electrical grids, and industrial machinery deal in enormous figures, engineers prefer megawatts; everyday appliances and electronics are rated in watts. This converter bridges the two scales so you never have to count zeros by hand.

How it works

The relationship between the units is fixed and decimal. The prefix “mega” means one million, so a single megawatt always equals exactly 1,000,000 watts. Converting from megawatts to watts therefore means multiplying by one million (shifting the decimal point six places to the right). Going the other way, from watts to megawatts, means dividing by one million (shifting the decimal point six places to the left).

This converter is bidirectional. Type a value into either field and the other updates automatically, so you can move from MW to W or from W to MW without switching tools. The unit selectors also let you mix in kilowatts (kW) and horsepower (hp) when you need them.

Formula

To convert megawatts to watts, multiply by one million:

$W = MW \times 1{,}000{,}000$

To convert watts back to megawatts, divide by one million:

$MW = \frac{W}{1{,}000{,}000}$

Megawatts to watts conversion table

The table below lists common megawatt values and their exact equivalents in watts.

Examples

Example 1: Converting 1 megawatt to watts

A single megawatt is the simplest reference point. Multiply by one million:

$1 \text{ MW} \times 1{,}000{,}000 = 1{,}000{,}000 \text{ W}$

So 1 MW equals 1,000,000 watts.

Example 2: Converting 5 megawatts to watts

A small wind turbine might be rated at about 5 MW. To express that output in watts:

$5 \text{ MW} \times 1{,}000{,}000 = 5{,}000{,}000 \text{ W}$

That is 5,000,000 watts.

Example 3: Converting 2,000,000 watts to megawatts

Suppose a substation reports a load of 2,000,000 W and you want it in megawatts. Divide by one million:

$\frac{2{,}000{,}000 \text{ W}}{1{,}000{,}000} = 2 \text{ MW}$

The load is therefore 2 MW.

Example 4: Converting 3 kilowatts to watts

The unit selectors also handle kilowatts. Because 1 kW equals 1,000 W:

$3 \text{ kW} \times 1{,}000 = 3{,}000 \text{ W}$

So 3 kilowatts equal 3,000 watts.

Notes

• The megawatt-to-watt relationship is exact, not an approximation: 1 MW is always precisely 1,000,000 W.
• Do not confuse the megawatt (MW), a unit of power, with the megawatt-hour (MWh), a unit of energy. Power is the rate of energy use; energy is power multiplied by time.
• Watt symbols are case-sensitive in the SI: capital “W” for watt and capital “M” for mega. A lowercase “m” means milli, which is a thousand times smaller.
• For very large grids you may also encounter the gigawatt (GW), equal to 1,000 MW or 1,000,000,000 W.

Frequently asked questions

How many watts are in 1 megawatt?

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

How do I convert watts to megawatts?

Divide the number of watts by 1,000,000. For example, 2,000,000 W divided by 1,000,000 equals 2 MW.

Is a megawatt a unit of energy or power?

A megawatt is a unit of power, meaning the rate at which energy is generated or consumed. If you measure that rate over a period of time, you get energy, expressed in units such as megawatt-hours (MWh).

What is the difference between a megawatt and a kilowatt?

A kilowatt is 1,000 watts, while a megawatt is 1,000,000 watts. That makes one megawatt equal to 1,000 kilowatts. If you need that conversion, try our megawatt to kilowatt converter.

How many watts does a 5 MW turbine produce?

A 5 MW rating corresponds to 5,000,000 watts of power output at full capacity.

Can this converter also handle kilowatts and horsepower?

Yes. The unit selectors next to each field let you switch between megawatts, kilowatts, horsepower, and watts, so you can convert across all four power units in one place.