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Bytes to Bits (B to bit)

Convert bytes to bits: 1 B = 8 bit. Exact conversion factor, formula, 18-row table and worked examples, with JSON API and MCP access.

Formula

1 B = 8 bit

bits = bytes × 8 — reverse: bytes = bits × 0.125

The factor is derived from the SI definitions of both units (base unit: B) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

1.5 B = 12 bit
700 B = 5600 bit
2048 B = 16384 bit

Bytes to bits conversion table

Bytes (B)	Bits (bit)
1	8
2	16
4	32
8	64
16	128
32	256
64	512
100	800
128	1024
256	2048
500	4000
512	4096
1000	8000
1024	8192
2048	16384
4096	32768
8192	65536
10000	80000

FAQ

How many bits are in one byte?

1 B = 8 bit. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

What is the formula to convert bytes to bits?

Multiply the value in bytes by 8: bits = bytes × 8. For example, 1.5 B = 12 bit.

How do I convert bits back to bytes?

Multiply by the inverse factor 0.125 (bytes = bits × 0.125), or use the bits-to-bytes page.

Related conversions

Bits to bytes (reverse)
Data Storage Converter — all data storage units in one tool
Megabytes to Gigabytes
Gigabytes to Megabytes
Gigabytes to Terabytes
Terabytes to Gigabytes
Kilobytes to Megabytes
Megabytes to Kilobytes
Mebibytes to Megabytes
Megabytes to Mebibytes

Machine access

API: GET https://tttkmbb.com/api/v1/convert?value=1.5&from_unit=B&to_unit=bit
MCP: server https://tttkmbb.com/mcp, tool convert_units with {"value":1.5,"from_unit":"B","to_unit":"bit"}
Markdown: https://tttkmbb.com/conversion/bytes-to-bits.md · JSON: https://tttkmbb.com/conversion/bytes-to-bits.json (add ?value= for a result) · Units: /api/v1/units?quantity=data-storage
OpenAPI operationId: convert_units. Freshness: static. Authentication: none.