Power / W → MW
Convert Watts to Megawatts
Convert rates of energy transfer, including watts and explicitly defined horsepower. Convert Watts (W) to Megawatts (MW). Find the formula, worked examples, unit definitions, and practical guidance below.
How to convert watts to megawatts
Mechanical horsepower is 550 foot-pounds-force per second. Metric horsepower uses 75 kilogram-force meters per second and has a different value.
Use x for the value in W, b for the intermediate value in W, and y for the result in MW.
MW = W ÷ 1000000
Worked examples
10 W ≈ 0.00001 MW
Step 1: (10 × 1) ≈ 10 W.
Step 2: 10 ÷ 1000000 ≈ 0.00001 MW.20 W ≈ 0.00002 MW
Step 1: (20 × 1) ≈ 20 W.
Step 2: 20 ÷ 1000000 ≈ 0.00002 MW.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Watts
Watts (W) measures power under the conventions above. The base value in W is (x × 1), where x is the numerical value in W. Factors shown here are rounded for display; calculations use the stored factor.
About Megawatts
Megawatts (MW) measures power under the conventions above. The base value in W is (x × 1000000), where x is the numerical value in MW. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Watts to megawatts reference table
| Watts (W) | Megawatts (MW) |
|---|---|
| 1 | 0.000001 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 25 | 0.000025 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 1000 | 0.001 |
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