English to Portuguese

How good is it, measured

COMET 88.5 for English → Portuguese, over 200 sentences of the FLORES-200 test set, with the checks running — the recipe that ships. At that score it reads naturally; you would edit wording, not meaning.

COMET is a standard automatic measure of translation quality, not a percentage of words correct; it is the number machine-translation research reports, which is why we report it rather than a figure of our own devising. We publish it for the 45 pairs we have actually run. A pair we have not measured gets no page and no number, because an interpolated score would be a guess presented as a fact.

Five real translations, unedited

These sentences come from FLORES-200, the public test set that translation research is measured on. They were chosen before anything was translated — the same five on every pair page — and each is shown exactly as Traxlate returned it on an RTX 3070, next to the translation a professional translator wrote for the same sentence.

A different word from the reference is not an error: two good translators rarely match word for word. What to look for is whether the meaning, the numbers and the names came through.

1. English — original

   "We now have 4-month-old mice that are non-diabetic that used to be diabetic," he added.

   Traxlate, on the device · 0.46 s

   "Agora temos ratos de 4 meses de idade que não são diabéticos, mas que eram diabéticos", acrescentou.

   Human reference translation

   "Agora temos ratos de 4 meses de idade que não são diabéticos e que antes eram diabéticos,"complementou.

2. English — original

   For instance, they didn't have corn, nor tomatoes, nor potatoes, nor cocoa, and no ancient Roman ever tasted a turkey.

   Traxlate, on the device · 0.66 s

   Por exemplo, eles não tinham milho, nem tomate, nem batata, nem cacau, e nenhum romano antigo jamais provou um peru.

   Human reference translation

   Por exemplo, eles não possuíam milho, nem tomate, nem batata, nem cacau, e nenhum antigo romano jamais provou um peru.

3. English — original

   Mass car ownership also leads to a higher incidence of accidents on the roads, which leads to the invention of new techniques in healthcare for repairing damaged bodies.

   Traxlate, on the device · 0.82 s

   A propriedade de automóveis em massa também leva a uma maior incidência de acidentes nas estradas, o que leva à invenção de novas técnicas em cuidados de saúde para reparar corpos danificados.

   Human reference translation

   A posse de carros em massa leva a uma incidência maior de acidentes nas estradas, o que leva à invenção de novas técnicas no sistema de saúde para curarem os corpos feridos.

4. English — original

   Severe weather is the generic term for any dangerous weather phenomenon with the potential to cause damage, serious social disruption, or loss of human life.

   Traxlate, on the device · 0.78 s

   Clima severo é o termo genérico para qualquer fenômeno meteorológico perigoso com o potencial de causar danos, graves perturbações sociais ou perda de vida humana.

   Human reference translation

   Mau tempo é o termo genérico para qualquer fenômeno climático perigoso com potencial de causar danos, sérias perturbações sociais ou perda de vidas humanas.

5. English — original

   Majorcan cuisine, like that of similar zones in the Mediterranean, is based on bread, vegetables and meat (specially pork), and uses olive oil throughout.

   Traxlate, on the device · 0.82 s

   A cozinha maiorquina, como a de zonas semelhantes do Mediterrâneo, é baseada em pão, legumes e carne (especialmente carne de porco), e usa azeite em todos os pratos.

   Human reference translation

   A culinária maiorquina, assim como a de zonas similares no Mediterrâneo, é baseada em pão, vegetais e carne (especialmente de porco), e utiliza azeite de oliva em tudo.

Sentences: FLORES-200 devtest, by Meta AI, licensed CC BY-SA 4.0. Translated 2026-09-24.

What you can translate

• Text — type, paste or dictate, and read it back in Portuguese.
• Documents — Word, PowerPoint, Excel, EPUB and subtitles, with the formatting kept rather than flattened.
• PDFs — including scanned ones, read on the device.
• Pictures — photograph a sign or a menu in English and read it in Portuguese.

Why it stays on your device

The engine and the language pack are downloaded once and run locally. There is no English-to-Portuguese API call behind this page: the server rung was removed in August 2026, so a hard sentence cannot quietly be sent away to be handled. That matters most for the documents people actually translate — contracts, medical letters, filings. The privacy model says exactly what does and does not leave, and the security page covers the rest.

What is checked before you see it

Each sentence is drafted, then checked for the failures that change meaning rather than style: a dropped negation, a changed number or amount, a name that went missing, a date that shifted. Where a check is not satisfied the sentence is redrafted. English and Portuguese are covered by the language-specific tables built for 18 languages. The status line names the step it is on, and anything it could not settle is shown to you rather than hidden.

The other direction, and each language on its own

• Portuguese to English — measured separately; the score differs by direction.
• English on Traxlate — script, voices, picture reading and what else is supported.
• Portuguese on Traxlate — the same, for the target.

Other pairs we have measured

• Arabic → English
• Chinese → English
• English → Amharic
• English → Arabic
• English → Armenian
• English → Bengali
• English → Burmese
• English → Chinese
• English → French
• English → Georgian
• English → German
• English → Greek