6.1 Spanish Numbers 101 and Higher Grammar Notes

Vocabulary and grammar rules for Spanish numbers from 101 to one trillion, including gender agreement and punctuation conventions.

Spanish numerical punctuation

Spanish uses a period, rather than a comma, to indicate thousands and millions (e.g., $550.000$).

ciento uno

The number $101$ when used for counting.

ciento un(a)

The form of the number $101$ used when describing quantity (e.g., ciento una noches).

doscientos/as

Spanish for the number $200$.

trescientos/as

Spanish for the number $300$.

cuatrocientos/as

Spanish for the number $400$.

quinientos/as

Spanish for the number $500$.

seiscientos/as

Spanish for the number $600$.

setecientos/as

Spanish for the number $700$.

ochocientos/as

Spanish for the number $800$.

novecientos/as

Spanish for the number $900$.

mil

Spanish for $1.000$; it can mean 'a thousand' or 'one thousand'.

mil cien

Spanish for the number $1.100$.

dos mil

Spanish for the number $2.000$.

cinco mil

Spanish for the number $5.000$.

cien mil

Spanish for the number $100.000$.

doscientos mil

Spanish for the number $200.000$.

quinientos cincuenta mil

Spanish for the number $550.000$.

un millón (de)

Spanish for the number $1.000.000$, literally a million or one million.

mil millones

The Spanish term for a billion ($1.000.000.000$).

un billón

The Spanish term for a trillion ($1.000.000.000.000$).

Gender agreement of numbers 200–999

A rule stating that numbers $200$ through $999$ agree in gender with the nouns they modify (e.g., trescientas veinticuatro tiendas).

millones

The plural form of un mill????????n; unlike the singular form, it has no accent.

ocho millones (de)

Spanish for the number $8.000.000$.

Expressing years in Spanish

Years are never expressed as pairs of $2$-digit numbers but as full numbers (e.g., $1945$ is mil novecientos cuarenta y cinco).

Usage of 'de' with millions

When mill????????n or millones is used before a noun, this word must be placed between them (e.g., quince millones de personas).