megabytes to kilobytes Converter
Type a value in megabytes and get the answer in kilobytes instantly — or convert the other way. The conversion uses the exact relationship 1 megabytes = 1000 kilobytes, the same formula used in textbooks and engineering references.
On the decimal scale storage vendors use, 1 MB = 1,000 KB exactly. (Operating systems sometimes count in binary kibibytes — 1 MiB = 1,024 KiB — which is where the classic 'my file is bigger than it should be' confusion comes from.)
How to use
- Type your value into the megabytes box — the kilobytes result updates as you type.
- To go the other direction, type into the kilobytes box instead and read the megabytes result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert megabytes to kilobytes?
Multiply the number of megabytes by 1000. For example, 10 megabytes = 10000 kilobytes. The converter above does this for you and shows more decimal places than you will ever need.
How many kilobytes are in one megabytes?
Exactly 1000 kilobytes. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official megabytes-to-kilobytes factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert kilobytes back to megabytes?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.