Quantity and Selection Questions in Spanish

In Brief

Use cuánto, cuánta, cuántos, cuántas for “how much” and “how many”; before a noun, the ending matches that noun: ¿Cuántos libros? but ¿Cuánta agua? Use cuál and cuáles to select or identify one or more possibilities: ¿Cuál prefieres? and ¿Cuáles son tuyos? Spanish often uses cuál in identification questions where English naturally uses “what,” as in ¿Cuál es tu nombre?

Overview

Questions about quantity and choice appear everywhere: at a market, in a restaurant, while making plans, and when exchanging personal information. At A1, a few patterns let you ask useful questions such as ¿Cuánto cuesta? (“How much does it cost?”), ¿Cuántos hermanos tienes? (“How many siblings do you have?”), and ¿Cuál prefieres? (“Which one do you prefer?”).

The cuánto family asks about an amount or number. When one of these words comes before a noun (a word naming a person, thing, place, or idea), it shows agreement: its ending matches the noun’s gender—masculine or feminine—and number—singular or plural. That is why Spanish has four forms where English simply has “how much” or “how many.”

The cuál family asks someone to identify or select an answer. It has singular cuál and plural cuáles, but no masculine/feminine distinction. Its relationship with English “what” and “which” is not word-for-word: Spanish chooses between qué and cuál according to the kind of answer requested and the sentence structure.

How It Works

The four forms of cuánto

Use the form that agrees with the noun immediately associated with the quantity.

Form	Goes with	Basic meaning	Example
cuánto	masculine singular	how much	¿Cuánto dinero necesitas?
cuánta	feminine singular	how much	¿Cuánta leche queda?
cuántos	masculine plural	how many	¿Cuántos días faltan?
cuántas	feminine plural	how many	¿Cuántas entradas quieres?

Grammatical gender, not the person asking or answering, determines the ending. Agua is grammatically feminine, so the question is ¿Cuánta agua...? even though singular agua normally uses el for sound reasons: el agua fría.

Spanish normally uses a singular quantity form with things treated as an uncounted amount: dinero (money), tiempo (time), agua (water), and comida (food). It uses a plural form with countable items: euros, horas, botellas, and platos.

When no noun follows

Cuánto can stand alone or work with a verb. If it means “how much” in a general sense, it is normally the fixed masculine singular form:

• ¿Cuánto cuesta? — How much does it cost?
• ¿Cuánto comes? — How much do you eat?
• ¿Cuánto falta? — How much is left? / How much longer is there?

If it replaces a plural noun understood from context, use cuántos or cuántas to match that omitted noun:

• Quiero manzanas. ¿Cuántas compro? — I want apples. How many should I buy?
• Hay varios trenes. ¿Cuántos van a Madrid? — There are several trains. How many go to Madrid?

The gender of the hidden noun still matters: manzanas gives cuántas, while trenes gives cuántos.

Asking about price

The most useful price pattern is:

¿Cuánto cuesta + singular item?
¿Cuánto cuestan + plural items?

The verb changes because its subject (the item whose price is being asked) changes from singular to plural:

• ¿Cuánto cuesta la camisa? — How much does the shirt cost?
• ¿Cuánto cuestan los zapatos? — How much do the shoes cost?

You can also ask ¿Cuánto es? when requesting a total, especially at a counter or after a service: “How much is it?”

Cuál and cuáles: selecting or identifying

Use cuál when the expected answer is one choice or one identifying detail. Use cuáles when the expected answer is plural.

Expected answer	Form	Example
one option or detail	cuál	¿Cuál prefieres? — Which one do you prefer?
several options or details	cuáles	¿Cuáles prefieres? — Which ones do you prefer?

The words do not change for gender: ¿Cuál es tu libro? and ¿Cuál es tu mochila? both use cuál.

A phrase with de can state the set of choices explicitly:

• ¿Cuál de estos libros quieres? — Which of these books do you want?
• ¿Cuáles de las fotos son tuyas? — Which of the photos are yours?

In widely taught standard Spanish, do not normally put cuál directly before a noun. English “which + noun” is usually qué + noun:

• ¿Qué película quieres ver? — Which movie do you want to see?
• ¿Cuál de las películas quieres ver? — Which of the movies do you want to see?

Why English “what” may become cuál

English often uses “what” to request a personal detail. Spanish commonly frames that detail as an identification and uses cuál, especially in cuál + ser questions:

• ¿Cuál es tu nombre? — What is your name?
• ¿Cuál es tu dirección? — What is your address?
• ¿Cuál es el problema? — What is the problem?

This is not a rule that cuál always comes before ser. A helpful contrast is that ¿qué es...? often asks for a definition or category, while ¿cuál es...? asks for identification or a specific answer:

• ¿Qué es una empanada? — What is an empanada? (Explain or define it.)
• ¿Cuál es tu empanada? — Which one is your empanada? (Identify it.)

At beginner level, learn common questions as complete patterns rather than translating “what” or “which” in isolation.

Written accents and question marks

The interrogative forms carry a written accent: cuánto, cuánta, cuántos, cuántas, cuál, cuáles. Spanish questions also use an opening question mark ¿ and a closing one ?. The accent remains in indirect questions—questions reported inside a statement—even though there are no question marks: No sé cuánto cuesta (“I don’t know how much it costs”).

Examples in Context

Spanish	English	Note
¿Cuánto cuesta?	How much does it cost?	General price question; no noun follows cuánto.
¿Cuánto cuesta este billete?	How much does this ticket cost?	Singular cuesta.
¿Cuánto cuestan estas entradas?	How much do these tickets cost?	Plural cuestan.
¿Cuánto tiempo necesitas?	How much time do you need?	Tiempo is masculine singular.
¿Cuánta agua bebes al día?	How much water do you drink per day?	Agua is feminine singular.
¿Cuántos hermanos tienes?	How many siblings do you have?	Masculine plural can include a mixed group.
¿Cuántas personas vienen a cenar?	How many people are coming to dinner?	Personas is feminine plural.
¿Cuántos años tienes?	How old are you?	Literally, “How many years do you have?”
Quiero dos camisetas. ¿Cuánto es?	I want two T-shirts. How much is it altogether?	Asks for the total.
¿Cuál prefieres, el rojo o el azul?	Which one do you prefer, the red one or the blue one?	One selection from two options.
¿Cuáles quieres probar?	Which ones do you want to try?	The expected selection may be plural.
¿Cuál de estos autobuses va al centro?	Which of these buses goes downtown?	De introduces the set.
¿Cuál es tu nombre?	What is your name?	Identifies one personal detail.
¿Cuáles son tus días libres?	Which days are your days off?	A plural answer is expected.
No recuerdo cuántas personas vienen.	I don’t remember how many people are coming.	Indirect question: accent, but no question marks.

Common Mistakes

Using one form of cuánto for every noun

• Wrong: ¿Cuánto personas vienen?
• Right: ¿Cuántas personas vienen?
• Why: Before a noun, cuánto agrees with it. Personas is feminine plural, so use cuántas.

Matching the person instead of the noun

• Wrong: ¿Cuánta hermanos tienes?
• Right: ¿Cuántos hermanos tienes?
• Why: Agreement follows the grammatical form of hermanos, not the gender of the speaker. A masculine plural noun requires cuántos.

Forgetting singular and plural on costar

• Wrong: ¿Cuánto cuesta los zapatos?
• Right: ¿Cuánto cuestan los zapatos?
• Why: The subject is plural los zapatos, so the verb must be plural cuestan.

Putting cuál directly before a noun

• Awkward in the general standard: ¿Cuál película prefieres?
• Standard beginner choices: ¿Qué película prefieres? or ¿Cuál de las películas prefieres?
• Why: Standard Spanish generally uses qué + noun, or cuál de + group. Some regional varieties do use cuál + noun, but it is not the safest all-purpose beginner pattern.

Translating every English “what” as qué

• Unnatural for the intended meaning: ¿Qué es tu número de teléfono?
• Right: ¿Cuál es tu número de teléfono?
• Why: The question requests a specific identifying detail, not a definition of “telephone number.”

Dropping the written accent

• Wrong: ¿Cuantos años tienes?
• Right: ¿Cuántos años tienes?
• Why: Interrogative cuántos carries an accent. The same applies inside an indirect question: Dime cuántos años tienes.

Usage Notes

In conversation, the surrounding situation often supplies the omitted noun. At a bakery, ¿Cuántos quiere? can mean “How many do you want?” if the items are masculine plural; with empanadas, the same question becomes ¿Cuántas quiere? This is one reason agreement remains useful even when the noun is not spoken.

Spanish may ask for age with ¿Cuántos años tienes?—literally “How many years do you have?”—not with a direct equivalent of English “How old are you?” For a polite form, use ¿Cuántos años tiene? The quantity phrase stays the same; only the verb changes.

The distinction between qué and cuál varies somewhat by region and context. In particular, cuál + noun occurs in parts of Latin America. Learners will understand it when they hear it, but qué + noun and cuál de + group are broadly reliable choices in both Spain and Latin America.

Beyond the Basics

You do not need to master these details at A1, but they explain forms you will encounter later.

Cuánto can be used in exclamations, not only questions: ¡Cuánto tiempo! (“It’s been so long!” or literally “How much time!”) and ¡Cuántas cosas tienes! (“You have so many things!”). The accent remains because the word is exclamatory.

Forms without an accent—cuanto, cuanta, cuantos, cuantas—have other jobs. For example, Come cuanto quieras means “Eat as much as you want,” and Cuanto más practicas, más aprendes means “The more you practice, the more you learn.” These are related forms, but they are not the interrogative words taught in the core rule.

Cuál can also appear in indirect questions: No sé cuál elegir (“I don’t know which one to choose”) and Explícame cuáles son las opciones (“Explain to me what the options are”). The infinitive (the basic verb form, such as elegir, “to choose”) is especially common after cuál when the person making the choice is already clear.

Finally, the qué es versus cuál es contrast depends on meaning, not merely on the verb ser. Compare ¿Qué es el flamenco? (“What is flamenco?”—asking for an explanation) with ¿Cuál es el flamenco? in a context where several labeled items are visible (“Which one is the flamenco one?”—asking for identification). Context determines what kind of answer the speaker wants.

Practice Tips

1. Sort everyday nouns into four groups. Choose items around you—dinero, mesa, libros, llaves—and build a question with cuánto, cuánta, cuántos, or cuántas. Say the noun and its question together so agreement becomes automatic.
2. Role-play a purchase. Ask the price of one item, several items, and the total: ¿Cuánto cuesta...?, ¿Cuánto cuestan...?, and ¿Cuánto es? This trains both the question word and singular/plural verbs.
3. Practice choice pairs. Put two or three objects in front of you and alternate between ¿Qué libro prefieres?, ¿Cuál prefieres?, and ¿Cuál de estos libros prefieres? Notice how the structure—not just the English translation—controls the Spanish question word.

Related Concepts

• Prerequisite: Basic Questions — reviews Spanish question structure, punctuation, and core question words before adding quantity and selection.