hexadecimal

See also: hexadécimal

English

Etymology

1952, from hexa- +‎ decimal; see the Wikipedia article for more information. Piecewise doublet of sexadecimal.

Pronunciation

• IPA^(key): /ˌhɛksəˈdɛsɪməl/

• Audio (US):

  (file)

Noun

hexadecimal (countable and uncountable, plural hexadecimals)

1. (arithmetic, computing, uncountable) A number system with base sixteen, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, most used in computing as a hexadecimal digit can represent four bits, half a standard byte, and thus a single byte can be represented conveniently with two digits.
2. (countable, computing) A number expressed in the hexadecimal system.

Synonyms

• (arithmetic, computing): base sixteen
• hex
• sedecimal
• sexadecimal

Derived terms

• hexadecimally
• hexadecimal time
• hexit
• nonhexadecimal

Translations

number system with base sixteen

• Chinese:

  Mandarin: ^{(please verify)} 十六進制 / 十六进制 (zh)

  Min Nan: 十六進位 / 十六进位 (tsa̍p-la̍k-tsìn-uī)

• Czech: hexadecimální soustava f, šestnáctková soustava (cs) f
• Danish: hexadecimale talsystem n, sekstentalssystem n
• Dutch: heksadecimale talstelsel n
• Finnish: (system) heksadesimaalijärjestelmä (fi), (number) heksadesimaaliluku (fi)
• French: hexadécimal (fr) m
• German: Hexadezimalsystem (de) n, Sedezimalsystem n
• Greek: δεκαεξαδικό (el) n (dekaexadikó)
• Hebrew: בסיס הקסדצימלי m (basís hexadetsimáli)
• Hindi: षोडशाधार m (ṣoḍaśādhār)
• Icelandic: sextándakerfi n, sextándatala f
• Italian: sistema numerico esadecimale m
• Japanese: 十六進法 (ja) (じゅうろくしんほう, jūrokushinhō)
• Korean: 십육진법 (sibyukjinbeop)
• Norwegian: sekstentallsystem
• Polish: system szesnastkowy m
• Portuguese: sistema hexadecimal m
• Romanian: sistem hexazecimal n
• Russian: шестнадцатери́чная систе́ма f (šestnadcateríčnaja sistéma)
• Serbo-Croatian:

  Cyrillic: хексадецимални систем m

  Latin: heksadecimalni sistem m

• Spanish: hexadecimal (es)
• Swedish: hexadecimala talsystemet n

Adjective

hexadecimal (not comparable)

1. Of a number, expressed in hexadecimal.

Synonyms

• (arithmetic, computing): base-sixteen

Translations

expressed in hexadecimal

• Armenian: please add this translation if you can
• Catalan: hexadecimal (ca)
• Czech: šestnáctkový, hexadecimální
• Danish: hexadecimal
• Dutch: hexadecimaal (nl), hexadecimale (nl)
• Esperanto: deksesuma (eo)
• Estonian: please add this translation if you can
• Finnish: heksadesimaalinen
• French: hexadécimal (fr)
• Galician: hexadecimal
• Georgian: please add this translation if you can
• German: hexadezimal (de)
• Greek: δεκαεξαδικός (el) m (dekaexadikós)
• Hebrew: הקסדצימלי m (hexadetsimáli), הקסדצימלית f (hexadetsimálit)
• Hungarian: hexadecimális (hu)
• Icelandic: sextándatala f
• Italian: esadecimale (it)
• Latin: sedecimalis
• Polish: szesnastkowy (pl)
• Portuguese: hexadecimal (pt)
• Romanian: hexadecimal (ro)
• Russian: шестнадцатери́чный (ru) (šestnadcateríčnyj)
• Serbo-Croatian:

  Cyrillic: хексадецималан m

  Latin: heksadecimalan (sh) m

• Spanish: hexadecimal (es)
• Swedish: hexadecimal (sv) c
• Welsh: hecsadegol

See also

• base
• binary
• decimal
• octal
• 0x

Catalan

Pronunciation

• IPA^(key): (Central, Balearic) [əɡ.zə.ðə.siˈmal]
• IPA^(key): (Valencia) [eɡ.za.ðe.siˈmal]

Adjective

hexadecimal m or f (masculine and feminine plural hexadecimals)

1. hexadecimal

Noun

hexadecimal m (plural hexadecimals)

1. hexadecimal

Further reading

• “hexadecimal”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
• “hexadecimal”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026
• “hexadecimal” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

Portuguese

Pronunciation

• (Brazil) IPA^(key): /ˌɛk.sa.de.siˈmaw/ [ˌɛk.sa.de.siˈmaʊ̯], (uncommon) /ˌɛ.za.de.siˈmaw/ [ˌɛ.za.de.siˈmaʊ̯]

 

• (Portugal) IPA^(key): /ˌɛ.ɡzɐ.dɛ.siˈmal/ [ˌɛ.ɣzɐ.ðɛ.siˈmaɫ]

• (Portugal) IPA^(key): /ˌɛ.ɡzɐ.dɛ.siˈmal/ [ˌɛ.ɣzɐ.ðɛ.siˈmaɫ]
  • (Southern Portugal) IPA^(key): /ˌɛ.ɡzɐ.dɛ.siˈma.li/ [ˌɛ.ɣzɐ.ðɛ.siˈma.li]

• Audio (Portugal (Alentejo)):

  (file)

Adjective

hexadecimal m or f (plural hexadecimais)

1. (computing, of a number) hexadecimal (expressed in base 16)

Noun

hexadecimal m (plural hexadecimais)

1. (computing) hexadecimal (number expressed in base 16)

Further reading

• “hexadecimal”, in Michaelis Dicionário Brasileiro da Língua Portuguesa (in Portuguese), São Paulo: Editora Melhoramentos, 2015–2026, →ISBN
• “hexadecimal”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
• “hexadecimal”, in Dicionário da Língua Portuguesa (in Portuguese), Lisboa: Academia das Ciências de Lisboa, 2001–2026
• “hexadecimal”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
• “hexadecimal”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026

Romanian

Etymology

Borrowed from French hexadécimal.

Pronunciation

• IPA^(key): /ˌhe.ksa.de.t͡ʃiˈmal/

Adjective

hexadecimal m or n (feminine singular hexadecimală, masculine plural hexadecimali, feminine/neuter plural hexadecimale)

1. hexadecimal

Declension

Declension of hexadecimal

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative- accusative	indefinite	hexadecimal		hexadecimală	hexadecimali	hexadecimale
	definite	hexadecimalul		hexadecimala	hexadecimalii	hexadecimalele
genitive- dative	indefinite	hexadecimal		hexadecimale	hexadecimali	hexadecimale
	definite	hexadecimalului		hexadecimalei	hexadecimalilor	hexadecimalelor

Further reading

• “hexadecimal”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2026

Spanish

Pronunciation

• IPA^(key): /eɡsadeθiˈmal/ [eɣ̞.sa.ð̞e.θiˈmal] (Equatorial Guinea, Spain)
• IPA^(key): /eɡsadesiˈmal/ [eɣ̞.sa.ð̞e.siˈmal] (Latin America, Philippines)
• Rhymes: -al
• Syllabification: he‧xa‧de‧ci‧mal

Noun

hexadecimal m (plural hexadecimales)

1. hexadecimal

Adjective

hexadecimal m or f (masculine and feminine plural hexadecimales)

1. hexadecimal

Further reading

• “hexadecimal”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025