Four-bit hexadecimal digit
A four-bit hexadecimal digit is a data unit capable of representing any value from 0 to 15, commonly used in digital systems.
How big is it?
0.5 B · four-bit digit information content
Four-bit digit information content · exact conversion
A little perspective
Four-bit hexadecimal digit vs ASCII character: data size comparison
The data size of an ASCII character is about 2 times the four-bit digit information content of a four-bit hexadecimal digit.
BYTES OF DATA
A four-bit hexadecimal digit is a data unit capable of representing any value from 0 to 15, commonly used in digital systems.
An ASCII character is a letter, digit, punctuation mark or control code encoded using the American Standard Code for Information Interchange.
Measurements, assumptions & sources +
Four-bit hexadecimal digit
Four-bit digit information content: 0.5 B; exact conversion.
A hexadecimal digit represents one four-bit value; its 0.5-byte equivalent describes the bits represented, not text storage.
A hexadecimal digit represents four bits, exactly 0.5 byte; this does not count the bytes used to display the character as text.
The marked four-bit digit information content is calibrated. Unmeasured illustration details are representative.
ASCII character
Data: 1 B; example.
One ASCII character stored as one byte. UTF-8 characters can occupy more than one byte.
Defined examples — our methodology
The marked data is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 0.5 B
We compare the four-bit digit information content of a four-bit hexadecimal digit. This value follows an exact definition or conversion.
A hexadecimal digit represents one four-bit value; its 0.5-byte equivalent describes the bits represented, not text storage.
A hexadecimal digit represents four bits, exactly 0.5 byte; this does not count the bytes used to display the character as text.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 0.5 B | Not recorded | exact conversion |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueDigital informationSingle binary flag0.125 BOne-bit information contentA single binary flag is a data unit that can represent one of two possible states, such as true or false.
Nearest higher valueDigital informationASCII character1 BDataAn ASCII character is a letter, digit, punctuation mark or control code encoded using the American Standard Code for Information Interchange.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NIST CSRC Glossary — 0xabDefines a byte as eight bits and each hexadecimal digit as four bits.
There’s always another scale
Follow your curiosity.
DigitalASCII character1 BAn ASCII character is a letter, digit, punctuation mark or control code encoded using the American Standard Code for Information Interchange.DigitalSingle binary flag0.125 BA single binary flag is a data unit that can represent one of two possible states, such as true or false.DigitalIPv4 address4 BAn IPv4 address is a numerical label used to identify a device on a computer network that uses Internet Protocol version 4 for communication.DigitalEthernet MAC address6 BAn Ethernet MAC address is a unique identifier assigned to network interfaces for communications on physical networks.DigitalIPv6 address16 BAn IPv6 address is a numerical label used to identify devices on a computer network using the Internet Protocol version 6.DigitalUniversally unique identifier16 BA universally unique identifier is a standardised alphanumeric code used to distinguish information or objects in computer systems.DigitalSHA-256 digest32 BA SHA-256 digest is a unique digital fingerprint generated from input data using the SHA-256 cryptographic hash algorithm.DigitalGPS navigation message subframe37.5 BA GPS navigation message subframe is a segment of digital data transmitted by GPS satellites to provide positioning and timing information to receivers.