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Data & storage

Just how much data is 1 bit?

Characters

1 bit

Scale

BYTES OF DATA

1 bit

Decimal kB, MB and GB use powers of 1,000.

0.125 BData
0
Single binary flag

A single binary flag is a data unit that can represent one of two possible states, such as true or false.

0.125 BOne-bit information content
0
Bar length represents bytes. The physical sizes of devices are schematic; encoding and compression affect file sizes.

A little perspective

1 bit is approximately equal to the one-bit information content of a single binary flag.

Measurements, assumptions & sources +

1 bit

Data: 0.125 B; definition.

Decimal kB, MB and GB use powers of 1,000. KiB, MiB and GiB use powers of 1,024. The content of a file depends on encoding and compression.

NIST — SI conversion factors

Single binary flag

One-bit information content: 0.125 B; exact conversion.

A binary flag carries one bit of information, equivalent to one eighth of a byte; actual storage allocation is implementation-dependent.

One bit expressed as exactly 0.125 byte; this is information size, not the memory allocation used to store a flag.

NIST — Binary prefixes

The marked one-bit information content is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 1 bit with the one-bit information content of a single binary flag. The notes below explain how each value was chosen.

1 bit

0.125 B

Data · definition

Decimal kB, MB and GB use powers of 1,000. KiB, MiB and GiB use powers of 1,024. The content of a file depends on encoding and compression.

Single binary flag

0.125 B

One-bit information content · exact conversion

A binary flag carries one bit of information, equivalent to one eighth of a byte; actual storage allocation is implementation-dependent.

Comparing
Data ↔ One-bit information content
Relative size
1 bit is approximately equal to the one-bit information content of a single binary flag.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • Single binary flag: One bit expressed as exactly 0.125 byte; this is information size, not the memory allocation used to store a flag.

Data size depends on encoding and compression; decimal GB and binary GiB are different units.

0.125 Bbytes
1.25 × 10⁻¹⁰ GBgigabytes
1.1642 × 10⁻¹⁰ GiBgibibytes
1.25 × 10⁻¹³ TBterabytes

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