Data size converter
Convert file sizes and storage sizes between bits, bytes, KB, MB, GB, TB and binary units such as KiB, MiB and GiB.
Converted value
1 KB
1 kilobyte equals 1,000 bytes.
Bytes1,000 B
Bits8,000 bits
Binary approx.0.98 KiB
Quick answer
A data size converter helps you translate storage and file sizes between decimal units like KB, MB and GB, and binary units like KiB, MiB and GiB.
Important: Decimal units use powers of 1,000. Binary units use powers of 1,024. That is why 1 GB is not exactly the same as 1 GiB.
Decimal vs binary units
Hard-drive and internet providers often use decimal units. Operating systems and technical tools may show binary units. The difference becomes more noticeable with larger sizes.
| Unit | Meaning | Bytes |
|---|---|---|
| 1 KB | 1 kilobyte | 1,000 bytes |
| 1 KiB | 1 kibibyte | 1,024 bytes |
| 1 MB | 1 megabyte | 1,000,000 bytes |
| 1 MiB | 1 mebibyte | 1,048,576 bytes |
Common examples
File upload limitsConvert MB to KB or bytes when a website has a strict upload size limit.
Storage planningEstimate how many files can fit into a drive, memory card or cloud storage plan.
Internet usageCompare download sizes, app updates and monthly data allowances.
Technical checksSwitch between decimal and binary units when different systems report different values.
FAQs
Is MB the same as MiB?
No. MB usually means 1,000,000 bytes, while MiB means 1,048,576 bytes.
Why does storage look smaller on my computer?
One reason is that storage sellers often use decimal units, while some systems display binary units.
Does this converter work for internet speeds?
It converts data size, not speed. For speed, use units such as Mbps or MB/s and include time.