Bits to Bytes Converter
Enter the data size in bits below to convert it to bytes.
Convert Bits to Bytes
Enter a value in bits (b) to convert to bytes (B).
Bit to Byte Conversion Table
Table showing various bit measurements converted to bytes. Click any preset value or arrow to load it into the converter.
How to Convert Bits to Bytes
To convert bits to bytes, multiply the data size by the following conversion ratio: 0.125 bytes/bit.
Since one bit is equal to 0.125 bytes, you can use this simple formula to convert:
The data size in bytes is equal to the data size in bits multiplied by 0.125.
For example, here's how to convert 64 bits to bytes using the formula above.
How Many Bytes Are in a Bit?
There are 0.125 bytes in a bit, which is why we use this value in the formula above.
Our bit to byte calculator automatically converts your data size measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Bits and bytes are both units used to measure data size. Keep reading to learn more about each unit.
What Is a Bit?
A bit is a unit of data size equal to 1/8 of a byte (0.125 B). Basic binary digit (1/8 of a byte). [1]
The bit is classified as an IEC binary unit of data size. Bits can be abbreviated as b; for example, 1 bit can be written as 1 b.
When working with bits (b) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, bits (b) are widely used across standard data size applications within IEC binary workflows, engineering documentation, and technical data sheets.
What Is a Byte?
8 binary bits. It serves as a primary reference unit for measuring data size across scientific and practical applications. [2]
The byte is classified as an IEC binary unit of data size. Bytes can be abbreviated as B; for example, 1 byte can be written as 1 B.
As the primary coherent reference unit for data size in this category, all other data size units are mathematically anchored to the byte (B).
In practice, bytes (B) are widely used across standard data size applications within IEC binary workflows, engineering documentation, and technical data sheets.
When converting data size between bits (b) and bytes (B), keep full floating-point precision (1 b = 0.125 B; 1 B = 8 b) during intermediate calculations and round only the final byte figure to match your instrument tolerance.
More Bit & Byte Conversions
Need to calculate in the opposite direction? Use our bytes to bits calculator to switch your starting unit immediately. You can also explore related tools such as converting bytes to bits, converting megabytes to gigabytes, or converting gigabytes to terabytes.
Frequently Asked Questions
References
- [1]NIST / IEC StandardNIST / IEC (IEC 80000-13 Binary Prefixes)·Digital Storage Metrology Standard — Bits (b) to Bytes (B)
- [2]BIPM SpecificationBIPM (SI Decimal Prefixes (k, M, G, T, P))·Unit Specifications: Bit (b) & Byte (B)
- [3]NIST CUU ReferenceNIST CUU (SI Prefixes & Decimal Multiples)·Conversion Factors & Mathematical Basis (b to B)