Data Size Converter Online — Bytes to KB, MB, KiB and MiB
Convert bytes into decimal KB, MB, GB and binary KiB, MiB, GiB units online.
About this tool
The converter divides a nonnegative byte value by powers of 1000 and 1024 and shows each result to six decimals.
How to use
- Enter or select the required input.
- Run the tool with the intended options.
- Review the result before using or downloading it.
Features
- Decimal SI units.
- Binary IEC units.
- Six-decimal output.
Common use cases
- Compare disk and memory sizes.
- Read upload limits.
- Verify storage calculations.
Common issues and tips
- Input is always bytes.
- KB and KiB use different divisors.
Privacy
Processing runs locally in your browser. Input is not uploaded to Tools12345.
Frequently asked questions
What is KB?
1000 bytes.
What is KiB?
1024 bytes.
Can input be negative?
No.