Mw to Kw
Convert any value from megawatt to kilowatt with full precision. Use the converter above for instant results, or read on for the exact formula, worked examples, common uses, and answers to frequently asked questions.
About the Megawatt to Kilowatt conversion
Power measures the rate at which energy is used or generated. It comes up in electrical appliances, mechanical engines, heating systems, and electronics. The watt is the SI unit, but horsepower, BTU per hour, and mechanical horsepower are still common in automotive and HVAC contexts.
This page focuses specifically on converting megawatt to kilowatt. Use the converter above for instant results, or read on for what each unit is, the exact formula, a worked example, and answers to common questions.
Understanding megawatt and kilowatt
What is a kilowatt?
The kilowatt equals 1,000 watts. It is used for the output of motors and engines and for household electricity, which is billed in kilowatt-hours.
How a megawatt compares to a kilowatt
The megawatt is the larger of the two units: one megawatt is about 1000 kilowatt. Because the kilowatt is smaller, the same length or quantity works out to a larger number when you measure it with that unit. Knowing which unit is larger is a quick way to sanity-check a conversion: if the numbers move in the wrong direction, the two units have probably been swapped.
Conversion formula
The exact mathematical relationship between megawatt and kilowatt is:
1 megawatt = 1000 kilowatt
So to convert a value V from megawatt to kilowatt, use:
Vkilowatt = Vmegawatt × 1000
To go in the opposite direction:
Vmegawatt = Vkilowatt × 0.001
These factors come from the international definitions published by NIST, BIPM, and ISO 80000 and are exact within their respective standard systems. The converter applies them with full floating-point precision.
Worked example
Using the formula above, here are some common values converted from Megawatt to Kilowatt:
| Megawatt | Kilowatt |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
Sources and accuracy
The watt is defined as one joule per second (BIPM, NIST). Mechanical horsepower was originally defined by James Watt as about 745.7 W. Metric horsepower equals exactly 735.49875 W. One BTU per hour equals about 0.29307107 W.
Conversion factors are cross-checked against the NIST SP 811 guide, the BIPM SI brochure, and ISO 80000, plus published historical references for older unit systems. For mission-critical work such as medical dosing, legal-for-trade measurement, aerospace, or large-scale engineering, always verify independently with the original source.
Practical tips
When comparing engines, note that there are several horsepower definitions: mechanical (hp), metric (PS or CV), electrical, and boiler. Use the converter to be sure which one is intended.
Frequently asked questions
How many kilowatt are in one megawatt?
One megawatt equals 1000 kilowatt. To convert, multiply your megawatt value by 1000.
Which is bigger, a megawatt or a kilowatt?
The megawatt is bigger. One megawatt equals about 1000 kilowatt.
How accurate is this megawatt to kilowatt converter?
It uses the official international conversion factors from NIST and BIPM with full double-precision floating-point accuracy. For everyday use the result is precise to many more decimal places than any practical measurement requires.
Can I convert kilowatt back to megawatt as well?
Yes. Use the swap button above to reverse the From and To fields, or change either dropdown to any unit in the power category. The calculation runs entirely in your browser, so it also works offline once the page has loaded.