How to Use “Aproximadamente” in Portuguese in Clear Sentences

Introduction

Learning how to express approximate quantities, times, or measurements is essential for everyday conversation in Portuguese. This article explains how to use aproximadamente in Brazilian Portuguese with clear grammar rules, sentence patterns, and natural examples to help English-speaking learners sound more fluent and precise.

What is aproximadamente?

aproximadamente is an adverb used to indicate that a number, time, amount, or estimate is not exact but close to the stated value. It corresponds to English words like approximately, about, roughly, or around. You can use it with numbers, time expressions, measurements, prices, and general estimates.

Basic grammar and placement

As an adverb, aproximadamente is flexible in word order. The most common positions are before or after the number or expression it modifies. Both positions are grammatical; the choice affects emphasis and rhythm.

Typical patterns:

– Aproximadamente + number + noun
– number + aproximadamente + noun
– noun + aproximadamente + verb (less common)

Using aproximadamente with numbers

When you state quantities, combine aproximadamente with the numeral and, if needed, the noun that describes the quantity. It does not change form for gender or number.

Examples:

Tem aproximadamente 50 pessoas na sala.
Há 50 pessoas aproximadamente na sala.

Note that both sentences are correct. The first emphasizes the estimate before the numeral; the second places the estimate after the numeral, sounding slightly more colloquial.

With decimals and ranges

Use aproximadamente with decimal numbers or ranges when exact precision is not necessary or known.

Exemplos:

O projeto custa aproximadamente 3.500,50 reais.
A reunião vai durar aproximadamente 2 a 3 horas.

Using aproximadamente with time

Time expressions are a common context. Use aproximadamente before times, durations, or dates to soften exactness.

Examples:

A aula começa aproximadamente às 9h.
Vou chegar aproximadamente às 18h30.

For durations:

O voo dura aproximadamente 10 horas.
Preciso de aproximadamente uma semana para terminar.

With dates and historical estimates

When talking about history or past events where the date is uncertain, aproximadamente is useful.

Exemplos:

O edifício foi construído aproximadamente em 1920.
A população daquela vila era aproximadamente 2.000 habitantes na década de 1950.

Using aproximadamente with prices and measurements

In shopping, recipes, or technical contexts, aproximadamente signals that a price or measurement is an estimate rather than an exact figure.

Examples:

O almoço custa aproximadamente 35 reais por pessoa.
A receita pede aproximadamente 200 gramas de farinha.

When paired with units, keep the unit after the number as in English: 200 gramas, 5 quilômetros, 1,5 litro.

Decimals and regional number format

Remember Brazilian Portuguese uses comma for decimals and period for thousands: 1.000,50. Use this format when writing Portuguese examples to sound natural.

Sentence position and emphasis

Where you place aproximadamente can change nuance. Before the number adds slight formality or emphasis to the estimate. After the number feels more neutral or conversational.

Compare:

Aproximadamente 100 pessoas participaram do evento. (emphasis on that the figure is an approximation)
100 pessoas participaram do evento aproximadamente. (casual, less formal)

Both are correct; choose based on tone. In spoken language, you may also hear contractions or dropped words, but aproximadamente remains clear and polite.

Synonyms and alternatives

Portuguese has several words and phrases with similar meanings. Using alternatives helps vary speech and writing and can slightly change register or precision.

Common alternatives:

– mais ou menos (more informal; literally more or less)
– cerca de (very common; similar to about)
– por volta de (colloquial; around)
– em torno de (a bit more formal)

Examples comparing them with aproximadamente:

Tem aproximadamente 20 livros na prateleira.
Tem cerca de 20 livros na prateleira.
Tem mais ou menos 20 livros na prateleira.
Chegarei por volta das 7h.
Chegarei em torno das 7h.

Note that cerca de and por volta de are often interchangeable with aproximadamente, but mais ou menos is noticeably more informal and common in speech.

Formality and context

Use aproximadamente in formal writing and speaking. For informal contexts, prefer mais ou menos or por volta de. In technical reports, scientific writing, and official documents, aproximadamente or em torno de are appropriate.

Common collocations and verbs

Aproximadamente often appears with verbs of being, occurring, costing, lasting, or estimating. Here are typical collocations:

– custar aproximadamente (to cost approximately)
– durar aproximadamente (to last approximately)
– ter aproximadamente (to have approximately)
– acontecer aproximadamente (to happen approximately)

Examples:

O projeto custará aproximadamente 10.000 reais.
A viagem deve durar aproximadamente seis horas.
O documento tem aproximadamente 30 páginas.
O encontro acontece aproximadamente uma vez por ano.

Pronunciation and stress

Pronounce aproximadamente as a-pro-xi-ma-da-men-te with the main stress on the syllable da (aproximadamente). Break it down to pronounce more easily:

a-pro-xi-ma-da-men-te

Native-like rhythm will come with practice. Listening to Brazilian Portuguese speakers and repeating sentences helps internalize natural intonation when using estimates.

Practical conversational examples

Here are everyday dialogues and sentences where aproximadamente appears naturally. Line breaks show how native speakers might structure short replies.

Você sabe quantas pessoas vieram?
Temos aproximadamente 120 participantes.

Quanto tempo leva o trajeto?
É aproximadamente uma hora, dependendo do trânsito.

Quanto custa o curso?
Custa aproximadamente 800 reais por mês.

Quando foi construído esse prédio?
Foi construído aproximadamente no início do século XX.

Politeness and hedging

Using aproximadamente is a polite way to hedge a statement when you are unsure of exact details. It shows caution and avoids giving false precision, which is useful in both formal and informal interactions.

Common mistakes and tips

Here are frequent learner errors and simple corrections.

1. Placing aproximadamente where it creates awkward phrasing
Incorrect: Eu tenho 20 aproximadamente anos.
Correct: Tenho aproximadamente 20 anos.
Put the adverb directly before the number or after it, and keep the noun or unit next to the number.

2. Mixing English word order
Incorrect: O evento custa 50 aproximadamente reais.
Correct: O evento custa aproximadamente 50 reais.
Portuguese usually keeps the unit right after the number.

3. Overusing in formal writing
While aproximadamente is appropriate in many formal contexts, technical documents may prefer specific statistical notation or ranges for clarity. In those cases, provide exact intervals when possible.

Cultural usage notes

Brazilian Portuguese speakers commonly use approximate language in casual conversation. Phrases like mais ou menos and por volta de are heard frequently in everyday speech. In customer service, menus, or travel contexts, approximate times and prices are often given to set expectations rather than promise exactness.

When arranging meetings, Brazilians often include buffer time. Saying Chego em 10 minutos in casual speech might mean 10 to 20 minutes; adding aproximadamente signals a more careful estimate: Chego aproximadamente em 10 minutos.

Advanced uses: combining with percentages and statistics

You can use aproximadamente with percentages or statistical figures. In research communication for a general audience, it signals that values are estimates or rounded.

Examples:

O estudo mostrou que aproximadamente 45% dos participantes preferem esse método.
Aumentou aproximadamente 12% em relação ao ano anterior.

In formal reports, complement aproximadamente with exact figures, intervals, or methodology if precision is needed.

Quick reference: common sentence frames

Use these templates to build your own sentences.

– Há aproximadamente [número] [unidade/nome].
– [Sujeito] custa aproximadamente [valor].
– Vai durar aproximadamente [duração].
– Chego aproximadamente às [hora].

Conclusion

Mastering aproximadamente gives you a practical tool to communicate estimates in Brazilian Portuguese with confidence. Use it before or after numbers, with times, prices, durations, and in formal or casual contexts depending on the synonym you choose. Listening to native speech and practicing the typical sentence frames will make your estimates sound natural and polite.