Data Storage Converter
Convert between bytes, KB, MB, GB, TB and their binary KiB/MiB/GiB equivalents.
Storage sizes are quoted in two competing systems: decimal units (1 KB = 1,000 bytes), used by drive manufacturers and networking, and binary units (1 KiB = 1,024 bytes), used by operating systems and memory. That's why a "1 TB" drive shows up as roughly 931 GiB in Windows — nothing is missing, the units are simply different.
This converter handles both systems side by side. Convert bytes, KB, MB, GB and TB, or their binary counterparts KiB, MiB, GiB and TiB, and see exactly how the decimal and binary interpretations differ. It's handy for sizing downloads, estimating backup space, checking hosting quotas, or making sense of the gap between an advertised drive capacity and what your OS reports.
How to use Data Storage Converter
- 1
Enter a value
Type the storage amount you want to convert.
- 2
Pick the source unit
Choose bytes, KB, MB, GB, TB, or a binary unit like MiB.
- 3
Pick the target unit
The converted value updates instantly as you type.
Features
- Supports both decimal (KB, MB, GB, TB) and binary (KiB, MiB, GiB, TiB) units
- Bit-level conversions for network-related calculations
- Instant, precise results as you type
Frequently asked questions
Common mistakes to avoid
- Mixing decimal and binary units when estimating disk space, leading to ~7% error at the TB scale.
- Confusing megabits (Mb) used for internet speeds with megabytes (MB) used for file sizes — there are 8 bits in a byte.
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