hecto-

See also: hecto

English

Alternative forms

• hect- (before a vowel)

Etymology

From French hecto-, from Ancient Greek ἑκατόν (hekatón, “hundred”). Doublet of hecato- and centi-.

Pronunciation

• Audio (Southern England):

  (file)

Prefix

SI prefix

h	Previous:	deca-
	Next:	kilo-

hecto-

1. hundred

   Synonyms: centi-, hecato-

2. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 100. Symbol: h

Usage notes

Usually this prefix for "× 10²" is intentionally not used in scientific contexts, in favor of either "× 10⁰" or "× 10³" instead. For example, "1 hm" (one hectometre) will usually be written instead as either "100 m" or "0.1 km". This fact is directly related to the preference for engineering notation as a subset of scientific notation that is especially useful mathematically. It favors groups of cubes (× 10³).

Derived terms

English terms prefixed with hecto-

hectoamp

hectoampere

hectane

hectobecquerel

hectobillion

hectobillionaire

hectocorn

dotriacontahectane

hectagon

hectogon

hectogram

hectogramme

hectograph

hectocotylus

hectohedron

hectokatal

hectokilo-

hectoliter

hectolitre

hectometre

hectometric

hectomillion

hectomillionaire

hectopascal

hectosecond

hectowatt

Translations

hundred

• Belarusian: гекта- (hjekta-)
• Bulgarian: хекто- (hekto-)
• Chinese:

  Mandarin: ^{(please verify)} 百- (zh) (bǎi)

• Czech: hekto- (cs)
• Danish: hekto-
• Dutch: hecto- (nl)
• Esperanto: hekto-
• Finnish: hehto- (fi)
• French: hecto- (fr)
• Galician: hecto- (gl)
• German: hekto- (de)
• Greek: εκατό- (ekató-), εκατο- (ekato-)
• Hindi: शत- (śat-)
• Hungarian: hekto- (hu)
• Icelandic: hektó-
• Indonesian: hekto-
• Italian: etto-
• Japanese: ヘクト- (hekuto)
• Korean: 헥토- (hekto-)
• Malay: hekto-
• Marathi: शत- (śat-)
• Nepali: शत- (śat-)
• Polish: hekto- (pl)
• Portuguese: hecto- (pt)
• Russian: гекто- (ru) (gekto-)
• Slovak: hekto-
• Slovene: hekto-
• Spanish: hecto- (es)
• Swedish: hekto- (sv)
• Thai: เฮกโต- (hêek-dtoo-), ศต- (th) (sà-dtà-, sàt-dtà-)
• Turkish: hekto-
• Vietnamese: héc-tô

SI 10²

• French: hecto- (fr)

Further reading

• “hecto-”, in OneLook Dictionary Search.

Anagrams

• cothe

Dutch

Etymology

From French hecto-, from Ancient Greek ἑκατόν (hekatón, “hundred”).

Pronunciation

• Audio:

  (file)

Prefix

hecto-

1. hecto-

Dutch terms prefixed with hecto-

hectoampère

hectare

hectocandela

hectogram

hectometer

hecto-ohm

hectoseconde

French

Pronunciation

• Audio (France (Paris)):

  (file)

• Audio (France (Vosges)):

  (file)

Prefix

hecto-

1. hecto-

Derived terms

French terms prefixed with hecto-

hectolitre

hectomètre

hectopascal

hectowatt

Further reading

• “hecto-”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012

Portuguese

Prefix

hecto-

1. hecto- (hundred)

Derived terms

Portuguese terms prefixed with hecto-

hectolitro

hectowatt

Further reading

• “hecto-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “hectolitro” in Dicionário Aberto based on Novo Diccionário da Língua Portuguesa de Cândido de Figueiredo, 1913
• “hecto-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Romanian

Prefix

hecto-

1. hecto-

Derived terms

Romanian terms prefixed with hecto-

hectolitru

hectometru

Further reading

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

Spanish

Etymology

Borrowed from French hecto-, from Ancient Greek ἑκατόν (hekatón, “hundred”).

Prefix

hecto-

1. hecto- (hundred)

Derived terms

Spanish terms prefixed with hecto-

hectárea

hectogramo

hectolitro

hectopascal

Further reading

• “hecto-”, 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