To say Spanish numbers, memorize base digits like uno (1), dos (2), and tres (3), then apply specific grouping patterns for teens, twenties, and hundreds.
Learning numbers is a foundational step in mastering Spanish. You use them daily for prices, phone numbers, addresses, and time. While the system shares similarities with English, distinct rules for pronunciation, gender agreements, and grouping exist.
This guide breaks down the Spanish counting system from zero to millions. You will learn the logic behind the patterns, correct pronunciation, and grammatical rules that fluent speakers use naturally.
The Basics: Numbers 0 to 10
You cannot progress without these pillars. Every larger number in Spanish relies on your ability to recall digits zero through nine instantly. Pronunciation is phonetic; vowels are short and crisp.
Memorize this list — Review the spelling and pronunciation for the foundational digits.
| Number | Spanish | Pronunciation |
|---|---|---|
| 0 | Cero | SEH-roh |
| 1 | Uno | OO-noh |
| 2 | Dos | dohs |
| 3 | Tres | trehs |
| 4 | Cuatro | KWAH-troh |
| 5 | Cinco | SEEN-koh |
| 6 | Seis | says |
| 7 | Siete | SYEH-teh |
| 8 | Ocho | OH-choh |
| 9 | Nueve | NWEH-veh |
| 10 | Diez | dyehs |
Pronunciation Tips for Beginners
Spanish vowels never change their sound like they do in English. The letter “u” in uno always sounds like the “oo” in “moon.” The “e” in tres sounds like the “e” in “best.”
- Watch the letter C — Before “i” and “e” (like cinco or cero), it sounds like an “s” in Latin America. In parts of Spain, it sounds like the “th” in “thin.”
- Roll the R — The “r” in cuatro and tres is a light tap against the roof of your mouth, similar to the English “dd” in “ladder.”
Navigating the Tricky Teens: 11 to 19
English has “eleven” and “twelve,” which do not look like “one” or “two.” Spanish follows a similar irregularity for the first five numbers of this set. However, numbers 16 through 19 shift into a predictable combination pattern.
The Unique Group (11–15)
These numbers have unique names. They share a similar ending root (-ce) derived from Latin. You must memorize these individually as they do not follow a simple formula.
- 11 — Once (OHN-seh)
- 12 — Doce (DOH-seh)
- 13 — Trece (TREH-seh)
- 14 — Catorce (kah-TOR-seh)
- 15 — Quince (KEEN-seh)
The Compound Group (16–19)
Starting at 16, the language simplifies. You form the number by saying “ten and [digit].” The old way of writing this was three separate words: diez y seis. Modern Spanish condenses this into one word. The “z” changes to “c,” and the “y” becomes “i.”
- 16 — Dieciséis (diez + i + séis)
- 17 — Diecisiete (diez + i + siete)
- 18 — Dieciocho (diez + i + ocho)
- 19 — Diecinueve (diez + i + nueve)
Note the accent — Dieciséis carries an accent mark on the “e.” This ensures the stress falls on the final syllable, breaking standard pronunciation rules.
Rules for Saying Spanish Numbers in the Twenties
The twenties follow the same logic as 16 through 19. They used to be three words (veinte y uno) but are now spelled as a single unit. The leading “e” in veinte drops and is replaced by “i.”
| Number | Spanish | Component Logic |
|---|---|---|
| 20 | Veinte | Base |
| 21 | Veintiuno | Veinte + uno |
| 22 | Veintidós | Veinte + dos |
| 23 | Veintitrés | Veinte + tres |
| 24 | Veinticuatro | Veinte + cuatro |
| 25 | Veinticinco | Veinte + cinco |
Numbers 26 through 29 continue this pattern: veintiséis, veintisiete, veintiocho, veintinueve. Note that veintidós, veintitrés, and veintiséis require accent marks because merging the words changes the syllable emphasis.
Counting from 30 to 99: The “Y” Pattern
Once you hit 30, the system becomes rigid and easy. From 31 to 99, Spanish numbers use three separate words: the multiple of ten, the word y (meaning “and”), and the single digit.
You never condense these into one word. Writing treintayuno is incorrect. It must be treinta y uno.
The Multiples of Ten
Learn the decades — These serve as the anchor for all numbers up to 99.
- 30 — Treinta
- 40 — Cuarenta
- 50 — Cincuenta
- 60 — Sesenta
- 70 — Setenta
- 80 — Ochenta
- 90 — Noventa
Distinguish 60 and 70 — Learners often confuse sesenta (60) and setenta (70). Sesenta has an “s” (think “six”), while setenta has a “t” (think “seven”).
Forming the Numbers
To say 42, you simply combine 40 and 2: Cuarenta y dos. To say 98, you combine 90 and 8: Noventa y ocho.
This “three-word rule” applies strictly until you reach 100. It makes reading prices and ages much simpler than the teen or twenty sections.
How to Handle Hundreds: 100 to 999
The rules change slightly when you enter triple digits. The word for 100 is cien. However, cien is exclusively used when the number is exactly 100. If the number is 101 or higher, cien becomes ciento.
- 100 — Cien
- 101 — Ciento uno
- 125 — Ciento veinticinco
- 150 — Ciento cincuenta
You do not add “y” between the hundreds and the tens. Saying ciento y uno is incorrect. It flows directly: ciento uno.
Pluralizing the Hundreds
From 200 to 900, the word consists of the base digit plus “cientos.” These words function like adjectives and must agree in gender with the noun they describe. This is a common stumbling block when asking “How do you say Spanish numbers?” in conversation.
| Number | Masculine Form | Feminine Form |
|---|---|---|
| 200 | Doscientos | Doscientas |
| 300 | Trescientos | Trescientas |
| 400 | Cuatrocientos | Cuatrocientas |
| 500 | Quinientos (Irregular) | Quinientas |
| 600 | Seiscientos | Seiscientas |
| 700 | Setecientos (Irregular) | Setecientas |
| 800 | Ochocientos | Ochocientas |
| 900 | Novecientos (Irregular) | Novecientas |
Watch for irregularities — 500 is not cincocientos; it is quinientos. 700 drops the “i” from siete to become setecientos. 900 changes the “ue” to “o” to become novecientos.
Thousands and Millions: The Large Figures
Spanish uses a period (.) where English uses a comma (,) for large numbers, though this varies by region (Mexico often follows the US system). The linguistic structure remains consistent.
Using “Mil” (1,000)
The word for 1,000 is mil. It does not pluralize. You never say “mils.” Whether you have 2,000 or 900,000, the word remains mil.
- 1,000 — Mil
- 2,000 — Dos mil
- 10,000 — Diez mil
- 100,000 — Cien mil
- 500,450 — Quinientos mil cuatrocientos cincuenta
To say a specific year, like 1995, Spanish reads it as a full number: “One thousand nine hundred ninety-five” (Mil novecientos noventa y cinco). You do not split it into “nineteen-ninety-five” as in English.
The Trap of “Billions”
The Spanish word billón refers to a million millions (what English calls a trillion). The English “billion” (1,000,000,000) is translated as mil millones (a thousand millions).
- 1,000,000 — Un millón (Note the accent and singular “un”)
- 2,000,000 — Dos millones (Los accent drops, plural ending adds -es)
- 1,000,000,000 (1 Billion US) — Mil millones
Use de with nouns — If you use a round million number with a noun, you must add “de.” Example: Un millón de personas (A million people).
Crucial Gender and Apocope Rules
Understanding correct pronunciation involves more than just the digits. You must adjust numbers based on the words following them.
The Uno / Un / Una Rule
The number 1 (uno) changes form depending on its position and the gender of the noun.
- Before a masculine noun — Uno becomes Un.
Example: Un perro (One dog). Not Uno perro. - Before a feminine noun — Uno becomes Una.
Example: Una casa (One house). - Counting alone — Use Uno.
Example: “Uno, dos, tres…”
This rule applies to composite numbers ending in one. For 21 men, you say veintiún hombres. For 31 women, you say treinta y una mujeres.
Gender with Hundreds
As mentioned earlier, hundreds from 200 to 900 possess gender. This is mandatory, not optional.
- Masculine context:Trescientos libros (Three hundred books).
- Feminine context:Trescientas plumas (Three hundred pens).
Ordinal Numbers: First, Second, Third
Cardinal numbers represent quantity (one, two). Ordinal numbers represent rank or position (first, second). In Spanish, ordinals are common up to 10. Beyond 10, people often revert to cardinal numbers for simplicity.
- 1st — Primero / Primer (before masc. noun)
- 2nd — Segundo
- 3rd — Tercero / Tercer (before masc. noun)
- 4th — Cuarto
- 5th — Quinto
- 6th — Sexto
- 7th — Séptimo
- 8th — Octavo
- 9th — Noveno
- 10th — Décimo
Shorten before masculine nouns — Just like uno becomes un, primero and tercero drop the “o” before a singular masculine noun.
Example: El primer día (The first day). El tercer piso (The third floor).
Practical Applications: Phone, Currency, and Decimals
Knowing the digits is step one. Applying them to real-world scenarios requires understanding cultural spacing and punctuation habits.
Giving Phone Numbers
In most Spanish-speaking countries, phone numbers are grouped in pairs. If your number is 555-1234, you would typically say it as: 555, 12, 34 (cinco five five, doce, treinta y cuatro).
In some regions, the area code is stated separately, followed by pairs. Listen to locals to adapt to the specific rhythm of the country you are visiting.
Currency and Prices
When dealing with money, replace the decimal point with “con” (with). For €15.50, you say quince con cincuenta. In casual street markets, the currency name is often omitted if the context is clear.
Using Decimals and Commas
Spain and South America often switch the US usage of commas and periods.
- US/Mexico: $1,500.00 (Comma for thousands, dot for decimals).
- Spain/Argentina: 1.500,00 (Dot for thousands, comma for decimals).
Key Takeaways: How Do You Say Spanish Numbers?
➤ Numbers 16–19 and 21–29 are written as single words (e.g., dieciséis, veintiuno).
➤ Use “y” only between tens and ones for numbers 31 through 99.
➤ “Uno” becomes “un” before masculine nouns and “una” before feminine nouns.
➤ Hundreds (200–900) must agree in gender with the noun (doscientos vs doscientas).
➤ 100 is “cien,” but 101+ uses “ciento” (e.g., ciento uno).
Frequently Asked Questions
How do you say 0 in Spanish?
Zero in Spanish is “cero.” In Latin America, it is pronounced “SEH-roh.” In Spain, the “c” often takes a “th” sound, pronounced “THEH-roh.” It is used for phone numbers, addresses, and mathematics just like in English.
Do Spanish numbers have accents?
Yes, specific numbers require accents to maintain correct stress. These include dieciséis (16), veintiún (21 before a noun), veintidós (22), veintitrés (23), and veintiséis (26). Also, un millón carries an accent, but its plural millones does not.
What is the difference between cien and ciento?
Use “cien” when the number is exactly 100 or when describing a noun (cien libros). Use “ciento” for any number between 101 and 199. For example, 101 is ciento uno and 150 is ciento cincuenta.
How do you say years in Spanish?
Read years as full cardinal numbers. The year 1985 is mil novecientos ochenta y cinco. You do not break it into “19” and “85” as is common in English. For years after 2000, the rule remains: 2024 is dos mil veinticuatro.
Why do some hundreds change spelling?
Most hundreds combine the digit and “cientos” (cuatro + cientos), but 500, 700, and 900 are irregular. 500 is quinientos (not cincocientos), 700 is setecientos (dropping the ‘i’), and 900 is novecientos (changing ‘ue’ to ‘o’).
Wrapping It Up – How Do You Say Spanish Numbers?
Mastering Spanish numbers opens doors to confident travel and conversation. By focusing on the patterns—especially the unique teens, the single-word twenties, and the gendered hundreds—you can navigate prices, times, and addresses with ease.
Start with the digits 0–10. Once those are solid, the logic of the larger numbers falls into place. Regular practice with phone numbers and prices is the fastest way to make these rules second nature.