Cardinal numbers are used in counting. They specify the quantity of a noun. For example, “one” in “one book” and “ten” in “ten books” are cardinal numbers.

Cardinals 0-9

Cardinals 11-19

Cardinals 20-99

Cardinals 100-999

Regarding “100”, its full form is یکصد (“yeksad”, a/one hundred) but it is usually used as صد (“sad”, hundred). Regarding “200”, there is also دوصد (“dosad”, two+hundred) but this form is not used in modern Iranian Persian.

Cardinals 1000 and up

Regarding “1000”, its full form is یکهزار (“yek-hezâr”, one thousand) but it is usually used as هزار (“hezâr”, thousand).

Cardinals with Nouns

Nouns are always in singular form after cardinal numbers because the number indicates the noun’s singularity or plurality.

یک کتاب
yek ketâb
a/one book
دو/سه/صد کتاب
do/se/sad ketâb
two/three/hundred books
(literally: two/three/hundred book)