How to use “Quanto” and “Quantos” in Portuguese basics

Introduction

Knowing how to ask about quantities is essential for basic communication in Brazilian Portuguese. This article explains how to use Quanto and Quantos in simple, realistic contexts so beginners can ask and answer questions about price, amount, and number with confidence.

Overview: What do Quanto and Quantos mean?

In Brazilian Portuguese, Quanto and Quantos are question words used to ask about quantity, amount, or price. They change form depending on gender and number of the noun they refer to. Use Quanto for singular masculine or abstract amounts, Quanta for singular feminine, Quantos for plural masculine, and Quantas for plural feminine.

Basic forms with labels

Quanto – singular masculine (How much / How many for masculine singular nouns)

Quanta – singular feminine (How much for feminine singular nouns)

Quantos – plural masculine (How many for masculine plural nouns)

Quantas – plural feminine (How many for feminine plural nouns)

When to use Quanto vs Quantos

Choose the form to match the noun that follows or the noun implied by the question. If you ask Quanto custa, you are asking about price, where custa relates to an implicit singular item. If you ask Quantos são, you ask for a number of items (plural).

Quantity versus price

Use Quanto often for price questions because price is treated as an amount: Quanto custa? means How much does it cost? For plural items priced collectively, choose Quantos when asking about the number of items: Quantos ingressos você quer? means How many tickets do you want?

Common sentence structures

Beginners will see a few repeated patterns. Memorize the structure and the small verbs that follow: custa, são, tem, fica, and valer.

Quanto custa + noun

Use this to ask the price of a single item or service.

Example: Quanto custa o bilhete?

Translation: How much is the ticket?

Example: Quanto custa a passagem de ônibus?

Translation: How much is the bus fare?

Quantos + noun + verb

Use this when you want to know the number of countable items.

Example: Quantos alunos há na sala?

Translation: How many students are there in the classroom?

Example: Quantos copos vêm no pacote?

Translation: How many glasses come in the pack?

Quanto(s) + ser

When asking for totals or prices in plural, use são or custam with a plural subject.

Example: Quanto são os ingressos?

Translation: How much are the tickets?

Example: Quantos são os livros disponíveis?

Translation: How many books are available?

Practical examples for everyday situations

Below are realistic examples you might encounter in stores, restaurants, transit, and at home. Each example shows a Portuguese phrase a beginner could say or read.

Shopping at a market

Example: Quanto custa o quilo de tomate?

Translation: How much does a kilo of tomatoes cost?

Buying a bus ticket

Example: Quanto custa a passagem só ida?

Translation: How much is a one-way ticket?

Ordering food

Example: Quantas fatias de pizza são na promoção?

Translation: How many slices of pizza are in the promotion?

Checking availability

Example: Quantos quartos estão disponíveis amanhã?

Translation: How many rooms are available tomorrow?

Narrowing time or schedule

Example: Quanto tempo leva a viagem?

Translation: How long does the trip take?

Asking about age or amount of years

Example: Quantos anos você tem?

Translation: How old are you?

Tip: Match gender and number correctly

Portuguese requires agreement between the question word and the noun. If the noun is feminine, use quanta or quantas. If the noun is plural, use the plural form quantos or quantas. If the noun is masculine and singular, use quanto.

Examples with gender

Example: Quanta água tem no copo?

Translation: How much water is in the glass?

Example: Quantas maçãs você quer?

Translation: How many apples do you want?

Common beginner mistakes and how to avoid them

Beginners often make predictable errors when using these question words. Below are common mistakes and simple corrections.

Mistake 1: Using Quanto for plural nouns

Incorrect: Quanto pessoas vieram?

Correct: Quantas pessoas vieram?

Tip: Pessoa is feminine, so use quantas.

Mistake 2: Forgetting plural verb with plural subject

Incorrect: Quantos livros está disponíveis?

Correct: Quantos livros estão disponíveis?

Tip: When the subject is plural, match the verb: estão, custam, são.

Mistake 3: Using Quanto for time or length without context

Incorrect: Quanto dura o filme? is okay, but be mindful of tense and context if referring to multiple sessions.

Better: Quanto tempo dura o filme?

Tip: Use tempo for duration clarity: Quanto tempo dura…?

Short practice dialogues

These short exchanges mimic real-life beginner interactions. Practice reading them aloud to build confidence.

At a bakery

Cliente: Quantos pães vêm no pacote?
Atendente: Vêm seis pães no pacote.

At a taxi stand

Passageiro: Quanto custa a corrida até o aeroporto?
Motorista: Custa cinquenta reais.

On the phone asking about stock

Cliente: Quantos livros do autor você tem?
Funcionário: Temos três cópias no estoque.

Useful related vocabulary

custa – costs

são – are (for plural things or amounts)

está / estão – is / are (location or state)

tem / há – have / there is, there are

preço – price

quantidade – quantity

kilo / quilo – kilo (weight)

Simple exercises for beginners

Fill-in-the-blank practice. Think of the noun gender and number before choosing the form.

1. _____ custa o suco?

Answer: Quanto

2. _____ maçãs há na cesta?

Answer: Quantas

3. _____ tempo falta para o ônibus chegar?

Answer: Quanto

4. _____ livros você quer comprar?

Answer: Quantos

Quick reference cheat-sheet

Use this as a memory aid when speaking or reading.

Quanto + singular masculine or abstract amount

Quanta + singular feminine

Quantos + plural masculine

Quantas + plural feminine

Practical tip for learners

When you are unsure about the noun gender, listen for the article in the phrase or choose a neutral phrasing that uses tempo or preço. For example, if you cannot recall whether an object is masculine or feminine, ask Quanto custa isso? which avoids gender because isso is neutral.

Conclusion

Mastering Quanto and Quantos gives beginners a powerful tool to ask about price, amount, and number in practical Brazilian Portuguese situations. Focus on matching gender and number, learn a few common verbs like custa and são, and practice with everyday examples to build confidence quickly.