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Bit (bit)

The basic unit of information: one binary digit, 0 or 1.

What is a bit?

Symbol
bit
Quantity
Data Storage
Unit system
other
Definition
The basic unit of information: one binary digit, 0 or 1.
Exact
Yes, the value is exact by definition
Source
IEC 80000-13:2008, Quantities and units: Information science and technology

Common applications

The basic unit of digital information, used in computing, communications and information theory.

Bit in other data storage units

Bit quick reference

Bit in other units
BitByteGigabyteGibibyte
1 bit= 0.125 B= 1.25e-10 GB≈ 1.164153218e-10 GiB
10 bit= 1.25 B= 1.25e-9 GB≈ 1.164153218e-9 GiB
100 bit= 12.5 B= 1.25e-8 GB≈ 1.164153218e-8 GiB
1000 bit= 125 B= 1.25e-7 GB≈ 1.164153218e-7 GiB

Where the bit fits

The next larger data storage unit is the nibble (nibble). 1 bit = 0.25 nibble, and 1 nibble = 4 bit.

Frequently asked questions

How many bytes are in one bit?
One bit = 0.125 B (bytes).
How many gigabytes are in one bit?
One bit = 1.25e-10 GB (gigabytes).
How many gibibytes are in one bit?
One bit ≈ 1.164153218e-10 GiB (gibibytes).