Data storage units
Convert decimal and binary storage units with explicit bit and byte distinctions.
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How it works
- 1 B = 8 bit; kB = 1000 B; KiB = 1024 B; a/b = Value × f₁ (bit/unit) ÷ f₂ (bit/unit)
- Worked example: 1 MiB = 1048576 B = 1.048576 MB; 8 Mb = 1 MB
- Supported input limits: Decimal string (decimal point, optional e exponent): n ≤ 1024
Assumptions and limitations
Decimal SI prefixes use powers of 1000; binary IEC prefixes use 1024. One byte is eight bits. Transfer estimates assume constant throughput; video uses average bitrates and explicit overhead. Screen calculations assume square pixels. Printing preserves aspect ratio through fit or crop; image PPI is distinct from printer DPI. Exact storage ratios are retained; nonterminating decimal displays round to twelve places.
Sources
- NIST — conversion factor conventions Sources reviewed: 2026-10-06
- NIST — conversion factor table B.8 Sources reviewed: 2026-10-06
- NIST — decimal and binary prefixes Sources reviewed: 2026-10-06



