As we’ve discussed on several previous occasions, being able to use numbers properly in a foreign language is an integral part of gaining fluency. Whether it is merely a phone number, an address, a price, telling time, saying the date, or what have you, it is impossible to function is society without being able to express these concepts linguistically. For those that find numbers to be difficult in any language (the case of the author), this may pose quite a challenge, although an obvious necessity. In this post we will endeavor to shed some light on ordinal numbers in Spanish, which, despite being used much less frequently in Spanish than in English, do appear in daily language.

Ordinal Numbers in Spanish


In contrast to cardinal numbers, ordinal numbers are used to express a place within an order; rather than qualify the noun, they identify it in a series of elements of the same type. Generally used as adjectives, ordinal numbers can be placed before or after a noun, although the former option is more common:

la primera vez / la vez primera

In addition to being adjectives, they can also be pronouns and even adverbs in some cases:

¡Hemos llegado a cuartos! [pronoun]

Primero pela las patatas. [adverb]


Also, remember that ordinal numbers, different from cardinal numbers, do change depending on whether or not the noun is singular or plural and masculine and feminine.


Simple and Compound Forms

When it comes to ordinal numbers, there are both simple and compound forms. The simple forms are those corresponding to numbers 1-12, the tens from 20-90, the hundreds from 100-900, and higher numbers such as a thousand, a million, and so forth:


primero, segundo, tercero… duodécimo

vigésimo, trigésimo, cuadragésimo… nonagésimo

centésimo, ducentésimo, cuadringentésimo… noningentésimo




The rest of the ordinal numbers are compounds, formed by joining two or more simple forms together:

thirteenth   — decimotercero

twenty-first — vigesimoprimero or vigésimo primero

thirty-fifth    — trigésimo quinto



Here are a few details to keep in mind when dealing with ordinal numbers. First of all, the numbers eleven and twelve have two possible forms, the former of which are preferable:

undécimo and duodécimo

decimoprimero and decimosegundo


Secondly, the ordinal numbers corresponding to the tens and twenties can be written as two words, although the more adequate option is to write them as one:

décimo tercero / decimotercero

vigésimo primero / vigesimoprimero


Next, be sure to remember that the forms primero and tercero drop the ‘o’ when placed before singular, masculine nouns:

el primer paso notel primero paso

el tercer piso notel tercero piso


Lastly, the form for fiftieth is often mistaken as cincuentésimo when it is actually quincuagésimo.


Use of Ordinal Numbers in Spanish

Fortunately, ordinal numbers are not used very frequently in Spanish. In fact, the date is expressed with cardinal numbers, as many other things that would be done so with ordinal numbers in English. Perhaps the most common use of ordinal numbers in Spanish is when referring to the floors of buildings:

first floor/primer piso

second floor/segundo piso

third floor/tercer piso

fourth floor/cuarto piso


Despite being infrequent, ordinal numbers in Spanish are difficult and do require some degree of practice. Take time to learn them, for you never know when they may come up.