Numbers

BASIC NUMBERS (0–20)

Spanish	English
0 — cero	zero
1 — uno	one
2 — dos	two
3 — tres	three
4 — cuatro	four
5 — cinco	five
6 — seis	six
7 — siete	seven
8 — ocho	eight
9 — nueve	nine
10 — diez	ten
11 — once	eleven
12 — doce	twelve
13 — trece	thirteen
14 — catorce	fourteen
15 — quince	fifteen
16 — dieciséis	sixteen
17 — diecisiete	seventeen
18 — dieciocho	eighteen
19 — diecinueve	nineteen
20 — veinte	twenty

Tens (20-100)

Number	Spanish	Notes
20	veinte	As above
21	veintiuno	No space or “y” until 30+
22	veintidós
23	veintitrés
24	veinticuatro
25	veinticinco
26	veintiséis
27	veintisiete
28	veintiocho
29	veintinueve
30	treinta	From here, use “y” between numbers
31	treinta y uno
40	cuarenta
50	cincuenta
60	sesenta
70	setenta
80	ochenta
90	noventa
100	cien (exact) / ciento (with other numbers)	e.g., ciento uno (101)

Hundreds (100–999)

Number	Spanish	Notes
100	cien / ciento	“Cien” when alone, “ciento” with others
200	doscientos
300	trescientos
400	cuatrocientos
500	quinientos	Irregular spelling
600	seiscientos
700	setecientos
800	ochocientos
900	novecientos

Thousands, Millions & Beyond

Number	Spanish	Example
1,000	mil	mil personas = 1,000 people
2,000	dos mil
10,000	diez mil
100,000	cien mil
1,000,000	un millón	un millón de libros
2,000,000	dos millones	millones becomes plural
1,000,000,000	mil millones	Spanish usually avoids “billón”