Convert Megawatts (MW) to Watts (W)

Q: How many watts is 1 megawatt?

Exactly 1,000,000 watts (one million). This is an exact SI definition.

Q: How many homes can 1 MW power?

About 750 average US homes. The average US household uses about 1.25 kW continuously (10,500 kWh/year ÷ 8,760 hours). So 1 MW ÷ 1.25 kW ≈ 800, but accounting for transmission losses, the practical figure is about 750.

Q: What is the difference between MW and MWh?

MW is power (instantaneous rate). MWh is energy (total output over time). A 1 MW turbine running for 1 hour produces 1 MWh. Running 24 hours at full capacity: 24 MWh.

Q: How many kilowatts is 1 megawatt?

Exactly 1,000 kilowatts. MW → kW → W follows the SI prefix chain: mega (10⁶) → kilo (10³) → base.

1 megawatt equals 1000000 watts.

Formula: W = MW × 1000000

Megawatt to Watt Converter

What Is a Megawatt?

The megawatt (MW) is an SI unit of power equal to one million watts (10⁶ W) or 1,000 kilowatts. It is the standard unit for measuring the output of power plants, wind farms, solar farms, and industrial electricity generation. A single large wind turbine produces 2-5 MW.

What Is a Watt?

The watt (W) is the SI base unit of power, equal to one joule per second (1 W = 1 J/s). Named after James Watt, it measures the rate of energy transfer. Individual devices are rated in watts (e.g., a 60W bulb), while generation capacity uses megawatts.

Megawatts to Watts Formula

The conversion is exact by SI definition:

watts = megawatts × 1,000,000

The "mega-" prefix means exactly one million in the SI system. No rounding involved.

Worked Example

Convert 2.5 MW (a typical onshore wind turbine) to watts:

Multiply: 2.5 × 1,000,000 = 2,500,000 W (2.5 million watts)

Quick Estimation

1 MW = 1 million watts — just add 6 zeros. Or think of it as 1 MW = 1,000 kW. Example: 500 MW = 500,000,000 W = 500 million watts.

Common Megawatts to Watts Conversions

Megawatts	Watts	Context
0.001 MW	1,000 W	1 kW — a microwave oven
0.01 MW	10,000 W	Large residential solar system
0.1 MW	100,000 W	Small commercial solar installation
1 MW	1,000,000 W	Powers ~750 US homes (average)
2.5 MW	2,500,000 W	Typical onshore wind turbine
10 MW	10,000,000 W	Offshore wind turbine (modern)
100 MW	100,000,000 W	Small gas-fired power plant
500 MW	500,000,000 W	Large coal or gas power plant
1000 MW	1,000,000,000 W	1 GW — large nuclear reactor

When You Need This Conversion

Energy industry: Power plant capacity is stated in MW. A 500 MW plant running at full capacity produces 500,000,000 watts — enough for about 375,000 average US homes.
Renewable energy: Wind and solar farms are measured in MW. A 100 MW solar farm occupies roughly 500-700 acres of land.
Grid planning: Understanding MW-to-W helps compare utility-scale generation (MW) with household consumption (W/kW).

Frequently Asked Questions

How many watts is 1 megawatt?

Exactly 1,000,000 watts (one million). This is an exact SI definition.

How many homes can 1 MW power?

About 750 average US homes. The average US household uses about 1.25 kW continuously (10,500 kWh/year ÷ 8,760 hours). So 1 MW ÷ 1.25 kW ≈ 800, but accounting for transmission losses, the practical figure is about 750.

What is the difference between MW and MWh?

MW is power (instantaneous rate). MWh is energy (total output over time). A 1 MW turbine running for 1 hour produces 1 MWh. Running 24 hours at full capacity: 24 MWh.

How many kilowatts is 1 megawatt?

Exactly 1,000 kilowatts. MW → kW → W follows the SI prefix chain: mega (10⁶) → kilo (10³) → base.

What is a gigawatt?

1 gigawatt (GW) = 1,000 MW = 1,000,000 kW = 1 billion watts. A large nuclear power station produces about 1 GW. The entire US grid capacity is roughly 1,200 GW.

Common Megawatt to Watt Conversions

Megawatt to Watt (Part 1)

Megawatt	Watt	Actions
1 megawatt	1000000 watts
5 megawatts	5000000 watts
10 megawatts	10000000 watts

Megawatt to Watt (Part 2)

Megawatt	Watt	Actions
50 megawatts	5 × 10⁷ watts
100 megawatts	1 × 10⁸ watts

Megawatts to watts Conversion Table

Reference table with common megawatts to watts conversions. All values calculated with high precision.

Megawatts to Watts Table
0.0001 to 12

Megawatts	Watts	Actions
0.0001 MW	100 W
0.00025 MW	250 W
0.0005 MW	500 W
0.001 MW	1000 W
0.0025 MW	2500 W
0.005 MW	5000 W
0.01 MW	10000 W
0.025 MW	25000 W
0.05 MW	50000 W
0.1 MW	100000 W
14 MW	250000 W
12 MW	500000 W

Megawatts to Watts Table
1 to 100000

Megawatts	Watts	Actions
1 MW	1000000 W
2 12 MW	2500000 W
5 MW	5000000 W
10 MW	10000000 W
25 MW	2.5 × 10⁷ W
50 MW	5 × 10⁷ W
100 MW	1 × 10⁸ W
250 MW	2.5 × 10⁸ W
500 MW	5 × 10⁸ W
1000 MW	1 × 10⁹ W
2500 MW	2.5 × 10⁹ W
5000 MW	5 × 10⁹ W
10000 MW	1 × 10¹⁰ W
25000 MW	2.5 × 10¹⁰ W
50000 MW	5 × 10¹⁰ W
100000 MW	1 × 10¹¹ W

Watts to Megawatts Table
100 to 500000

Watts	Megawatts	Actions
100 W	0.0001 MW
250 W	0.00025 MW
500 W	0.0005 MW
1000 W	0.001 MW
2500 W	0.0025 MW
5000 W	0.005 MW
10000 W	0.01 MW
25000 W	0.025 MW
50000 W	0.05 MW
100000 W	0.1 MW
250000 W	14 MW
500000 W	12 MW

Watts to Megawatts Table
1000000 to 1 × 10¹¹

Watts	Megawatts	Actions
1000000 W	1 MW
2500000 W	2 12 MW
5000000 W	5 MW
10000000 W	10 MW
2.5 × 10⁷ W	25 MW
5 × 10⁷ W	50 MW
1 × 10⁸ W	100 MW
2.5 × 10⁸ W	250 MW
5 × 10⁸ W	500 MW
1 × 10⁹ W	1000 MW
2.5 × 10⁹ W	2500 MW
5 × 10⁹ W	5000 MW
1 × 10¹⁰ W	10000 MW
2.5 × 10¹⁰ W	25000 MW
5 × 10¹⁰ W	50000 MW
1 × 10¹¹ W	100000 MW

Looking for the reverse? Convert Watt to Megawatt

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Conversion factors verified against NIST, BIPM, ISO 80000-4 Based on SI base units (W = J/s, BIPM). Last reviewed: April 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.