⇄Converters / FREE ONLINE TOOL

File Size Converter

Free file size converter for bytes, decimal KB/MB/GB and binary KiB/MiB/GiB. Compare storage units and understand the difference between 1000 and 1024.

Make it yours

◈ On-device processing
← Explore Developer & Data Tools

How to use this tool

Enter a file size and select the unit you have. The results show equivalent bytes, kilobytes, megabytes, gigabytes and binary IEC units for accurate comparison.

Quick steps

  1. Enter a size and choose its storage unit.
  2. Review decimal and binary size conversions.
  3. Copy the unit conversion summary.

Practical tip

Storage vendors commonly use decimal units: 1 GB equals 1 billion bytes. Many operating systems use binary units: 1 GiB equals 1,073,741,824 bytes.

Common questions

What is the difference between MB and MiB?

One MB is 1,000,000 bytes; one MiB is 1,048,576 bytes.

Can I calculate gigabytes from bytes?

Yes. Select bytes as the input unit, then view both GB and GiB.

Does this measure upload speed?

No. It converts file/storage sizes, not bandwidth or transfer time.

Advertisement
Advertisement