Data Size Unit Converter

Compare decimal byte units with binary byte units.

A megabyte and a mebibyte use different multipliers. Their labels should stay visible during conversion.

Choose the exact source byte unit and compare decimal and binary results.

Inputs and controls

Size

Allowed range: 0 to 1000000000000

Size

Bytes, kB, 1000 bytes, MB, 1000² bytes, GB, 1000³ bytes, KiB, 1024 bytes, MiB, 1024² bytes, GiB, 1024³ bytes

Choose input unit. Enter input size.
Select Process input. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.

Separate unit families help explain differences between download size and displayed storage figures.

This converts bytes, not bits. Results use floating arithmetic and are limited to one quadrillion bytes.

This converts bytes, not bits. Results use floating arithmetic and are limited to one quadrillion bytes.

Does this convert transfer speeds or bits?

No. It converts byte amounts. Speed needs a time basis and bit conversion is a separate operation.

What should I check before using Data Size Unit Converter?

Check Input size and Input unit. Use the exact units shown beside the controls and replace any example values with your own inputs.

Source page last modified: 2026-10-04T16:58:29+00:00. This profile describes the tool; use its page to run it.

Markdown profile