Convert Kilobytes to Megabytes
Kilobytes to megabytes is the conversion you reach for when a file size is listed in the tiny unit but you want the tidier one. On this site we use the way storage is actually sold — decimal — so one megabyte is exactly 1000 kilobytes, and going from KB to MB just makes the number smaller.
Kilobytes to Megabytes conversion table
| Kilobytes (KB) | Megabytes (MB) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1,000 | 1 |
The formula
To convert kilobytes to megabytes, divide the size in kilobytes by 1000:
megabytes = kilobytes ÷ 1000
A worked example
Say a photo off your phone weighs 3500 KB and you want it in megabytes:
3500 ÷ 1000 = 3.5 MB
The digits stay the same — the decimal point just slides three places left.
Decimal vs binary — why your OS may disagree
This conversion uses the decimal (SI) rule, where 1 MB = 1000 KB. That's how storage and internet plans are advertised. Your operating system, though, often counts in binary: what it labels a "megabyte" is really a mebibyte, 1 MiB = 1024 KiB. So a file this page calls 3.5 MB might show as roughly 3.42 in a file manager that's secretly using 1024. Nobody's wrong — they're just two different rulers.
When you'll use it
Reading email attachment limits, checking whether a batch of photos fits under a size cap, or making sense of a download that a website lists in KB when you think in MB.
Frequently asked questions
How many kilobytes are in a megabyte?
1000, using the decimal convention that storage and bandwidth are sold in. So to go from KB to MB you divide by 1000.
My computer says 1 MB is 1024 KB — which is right?
Both are 'right' in their own world. Operating systems often count in powers of two, where 1 MiB = 1024 KiB. Drive makers and this site use the decimal 1 MB = 1000 KB. That gap is why the same file can show two slightly different sizes.
Is dividing by 1000 exact?
In the decimal convention, yes. It's a clean shift of the decimal point three places to the left.