Cardinal Latin Numbers

Latin numbers are usually adjectives. When there are three forms, the number has a masculine, feminine, and neuter form, in that order. The numbers follow the appropriate declension rules. Note that there is no singular form for most of the numbers and no plural form for the number 1. Here are the cardinal numbers, the "one", "two", "three", etc. of Latin. For the "first", "second", "third", etc., see the Latin Ordinal Numbers.

1 - unus, una, unum

2 - duo, duae, duo

3 - tres, tres, tria

4 - quattuor

5 - quinque

6 - sex

7 - septem

8 - octo

9 - novem

10 - decem

11 - undecim

12 - duodecim

13 - tredecim

14 - quattuordecim

15 - quindecim

16 - sedecim

17 - septendecim

18 - duodeviginti

19 - undeviginti

20 - viginti

21 - viginti unus

30 - triginta

40 - quadraginta

50 - quinquaginta

60 - sexaginta

70 - septuaginta

80 - octoginta

90 - nonaginta

100 - centum

200 - ducenti, ducentae, ducenta

300 - trecenti, trecentae, trecenta

400 - quadrigenti, quadrigentae, quadrigenta(*)

500 - quingenti, quingentae, quingenta

600 - sescenti, sescentae, sescenta

700 - septingenti, septingentae, septingenta

800 - octingenti, octingentae, octingenta

900 - nongenti, nongentae, nongenta

1000 - mille

2000 - duo milia

Take the Cardinal Numbers Quiz

See Latin adjectives for information about using the correct form of a number/adjective, and Latin Gender for the 3 genders. Also see: Roman Numerals, Comparison of Italian and Latin Numbers, and Roman Fractions

(*)I don't know if this tip will help you, but it does help me when I'm looking at the spelling and trying to decide whether a part of the numeral is "20" (viginti) or "100" (centum).

septuaginta vs. septingenti

Visually they look similar and I can't easily distinguish the sounds by pronouncing them aloud to myself.

• The initial sound of centum, /k/, is a voiceless velar. /g/ is the voiced velar. Say: CENTUM and then say GENTUM. They're pretty close. Whether you pronounce the sound voiced or unvoiced depends on what precedes it. So, I don't look at whether there is a "c" or a "g".
• Note that in the compounds there is often a condensed version of viginti (gint-), so you can't count on the "vi" to tell you the answer.
• In the compound numbers, I look beyond the c/g to the vowel. If it's an "i", as in "gint", it's 20 (really, some multiple of ten), if it's an "e", as in "gent" or "cent", it's a multiple of 100.

More on Latin Adjectives

Romance Languages: Counting Numbers

	Eng	Latin	French	Italian	Spanish
1	one	unus	un	uno	uno
2	two	duo	deux	due	dos
3	three	tres	trois	tre	tres
4	four	quattuor	quatre	quattro	cuatro
5	five	quinque	cinq	cinque	cinco
6	six	sex	six	sei	seis
7	seven	septem	sept	sette	siete
8	eight	octo	huit	otto	ocho
9	nine	novem	neuf	nove	nueve
10	ten	decem	dix	dieci	diez