Watts to MW Converter
Quick answer: To convert watts to MW, multiply by 0.000001. For example, 10 W is 0.00001 MW. One watt equals 0.000001 MW.
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Use the Watts to MW Converter
Watts to MW formula and what each symbol means
MW = W × 0.000001
| Symbol | Meaning |
|---|---|
| W | Watt |
| MW | Megawatt |
Watts to MW examples
1 W
1 W × 0.000001 = 0.000001 MW.
10 W
10 W × 0.000001 = 0.00001 MW.
100 W
100 W × 0.000001 = 0.0001 MW.
Watts compared with MW
One MW is 1,000,000 times as large as one W, so your number gets smaller when you convert watts to MW and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About watts and MW
Watt (W): The SI unit of power, one joule per second. Megawatt (MW): One million watts.
Where watts to MW conversions are used
Power stations and the grid are described in megawatts and gigawatts. Engines and motors are rated in kilowatts or horsepower, depending on the market.
How to calculate Watts to MW step by step
- Enter the value in W (the starting unit).
- Multiply by 0.000001, because 1 W = 0.000001 MW.
- The product is the value in MW. To go back, divide by 0.000001 or multiply by 1,000,000.
Popular power conversions
How to read your Watts to MW result
Mechanical horsepower is about 745.7 W while metric horsepower (PS) is exactly 735.49875 W, so check which one a car or motor spec uses.
| WATTS | MW |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 20 | 0.00002 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 1,000 | 0.001 |
MW to Watts: quick table
| MW | WATTS |
|---|---|
| 1 | 1,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 250 | 250,000,000 |
| 500 | 500,000,000 |
Common mistakes when calculating Watts to MW
- Using Btu/h for heating loads without noting that 1 ton of refrigeration is 12,000 Btu/h.
- Dividing when you should multiply: from W to MW multiply by 0.000001; from MW to W divide by 0.000001.
Watts to MW FAQ
How many MW are in 1 W?
1 W equals 0.000001 MW.
How many W are in 1 MW?
1 MW equals 1,000,000 W.
Is 1 W = 0.000001 MW an exact conversion?
The factor is shown rounded to 7 significant figures (0.000001). The calculator above uses more digits.
What is a watt (W)?
The SI unit of power, one joule per second.
How can I estimate watts to MW in my head?
One MW is 1,000,000 times as large as one W, so your number gets smaller when you convert watts to MW and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
What is 150 W in MW?
150 W = 0.00015 MW (since 150 × 0.000001).
What is 0.5 W in MW?
0.5 W = 5×10⁻⁷ MW (since 0.5 × 0.000001).
What is 25 W in MW?
25 W = 0.000025 MW (since 25 × 0.000001).
How many decimals should I keep when converting W to MW?
Match the precision of your original measurement. For example, 0.00001 MW rounds to 0.00001 MW at 3 significant figures; keep more digits only for engineering or scientific work.
More in Power converters
- BTU per Hour to kW Converter
- Watts to BTU per Hour Converter
- BTU per Hour to MW Converter
- PS to Watts Converter
- BTU per Hour to PS Converter
- PS to MW Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors