Convert Watts to Megawatts

Enter the power in watts below to get the value converted to megawatts.

Results in Megawatts:
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1 W = 1.0E-6 MW
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How to Convert Watts to Megawatts

To convert a watt measurement to a megawatt measurement, multiply the power by the conversion ratio. One watt is equal to 1.0E-6 megawatts, so use this simple formula to convert:

megawatts = watts × 1.0E-6

The power in megawatts is equal to the watts multiplied by 1.0E-6.

For example, here's how to convert 5 watts to megawatts using the formula above.
5 W = (5 × 1.0E-6) = 5.0E-6 MW

Watts and megawatts are both units used to measure power. Keep reading to learn more about each unit of measure.


One watt is the power equal to the rate of energy of one joule per second in an electrical circuit. One watt is also equal to the power produced in a circuit with a voltage potential of one volt with a current of one amp.

The watt is the SI derived unit for power in the metric system. Watts can be abbreviated as W, for example 1 watt can be written as 1 W.

Watt's Law states the relationship between power, current, and voltage. Using Watt's Law, it's possible to express the power in watts as an expression using current and voltage.

PW = IA × VV

The power in watts is equal to the current in amperes times the potential difference in volts.

Combining this with Ohm's Law, it's also possible to express the power in watts using resistance in addition to volts and amps.


One megawatt is the power equal to 1,000,000 watts, or the energy consumption at a rate of 1,000,000 joules per second.

The megawatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "mega" is the prefix for 109. Megawatts can be abbreviated as MW, for example 1 megawatt can be written as 1 MW.

Watt Measurements and Equivalent Megawatt Conversions

Common watt values converted to the equivalent megawatt value
Watts Megawatts
1 W 0.000001 MW
2 W 0.000002 MW
3 W 0.000003 MW
4 W 0.000004 MW
5 W 0.000005 MW
6 W 0.000006 MW
7 W 0.000007 MW
8 W 0.000008 MW
9 W 0.000009 MW
10 W 0.00001 MW
11 W 0.000011 MW
12 W 0.000012 MW
13 W 0.000013 MW
14 W 0.000014 MW
15 W 0.000015 MW
16 W 0.000016 MW
17 W 0.000017 MW
18 W 0.000018 MW
19 W 0.000019 MW
20 W 0.00002 MW
21 W 0.000021 MW
22 W 0.000022 MW
23 W 0.000023 MW
24 W 0.000024 MW
25 W 0.000025 MW
26 W 0.000026 MW
27 W 0.000027 MW
28 W 0.000028 MW
29 W 0.000029 MW
30 W 0.00003 MW
31 W 0.000031 MW
32 W 0.000032 MW
33 W 0.000033 MW
34 W 0.000034 MW
35 W 0.000035 MW
36 W 0.000036 MW
37 W 0.000037 MW
38 W 0.000038 MW
39 W 0.000039 MW
40 W 0.00004 MW

More Watt Power Conversions

SI Units
Convert to Microwatts
1 W is equal to 1,000,000 microwatts
Convert to Milliwatts
1 W is equal to 1,000 milliwatts
Convert to Kilowatts
1 W is equal to 0.001 kilowatts
US Customary & Imperial Units
Convert to Mechanical Horsepower
1 W is equal to 0.001341 mechanical horsepower
Convert to Electric Horsepower
1 W is equal to 0.00134 electric horsepower
Convert to Btu Per Hour
1 W is equal to 3.412142 btu per hour
Other Units
Convert to Kilocalories Per Hour
1 W is equal to 0.860421 kilocalories per hour