Formula
target = value × source byte factor ÷ target byte factor
Convert the source value to bytes using its decimal or binary factor, then divide by the target factor.
Network & data
● Runs locallyStorage Unit Converter
Convert byte-based storage values while preserving the difference between decimal prefixes used by many vendors and binary prefixes used by some operating systems. The comparison table makes every byte factor visible.
Example values
Converted storage size
Assumptions
- B means byte; this tool does not convert bit-based storage labels.
- Decimal and binary prefixes use their published exact integer factors.
1 GB is 1,000,000,000 bytes. 1 GiB is 1,073,741,824 bytes. Their labels are never interchangeable.
Formula review
Formula v1.0.0
Reviewed 2026-08-03
CalcFlow engineering review
Storage Unit Converter: Worked example
1 GiB contains 1,073,741,824 bytes, so it equals 1.073741824 GB and exactly 1,024 MiB.
Frequently asked questions
Why does a drive look smaller in some systems?
A vendor may state decimal GB while software displays a binary-sized number with a different label or convention.
Is 1 KB equal to 1 KiB?
No. 1 KB is 1,000 bytes and 1 KiB is 1,024 bytes.
Are conversions exact?
The byte factors are exact integers. A displayed decimal may be rounded, and CalcFlow marks that through its precision policy.