Length and layout
Portuguese is about 15–30% longer than the English original. Both languages are written left to right, so the layout does not change — only the wording and line length do.
English → Português
Translate English video into Portuguese subtitles
Upload a video in English. SubFlow transcribes the speech, translates every caption into Portuguese, and keeps both languages on the same timeline so you can review them side by side — then export subtitles, a subtitled video, or a Portuguese dub.
30 free minutes monthly · No credit card
What changes
English and Portuguese, side by side.
| English (spoken) | Portuguese (subtitles) | |
|---|---|---|
| Script | Latin | Latin |
| Direction | Left to right | Left to right |
| Reading speed | 15–17 chars/sec | 15–17 chars/sec |
| Line length | about 42 chars | about 42 chars |
| AI dub voice | en-US | pt-BR |
Getting Portuguese right
Brazilian and European Portuguese differ in vocabulary and forms of address; the translation is Brazilian by default, which suits most online audiences.
Workflow
From English to Portuguese in three steps.
Upload the English video
Add a video or audio file. SubFlow transcribes the English speech into timed captions.
Translate into Portuguese
Pick Portuguese as the target. Every caption is translated with the surrounding lines as context, then shown beside the original.
Review and export
Fix names and terms, split any caption that runs long, then export Portuguese or bilingual subtitles, a subtitled video, or a Portuguese dub.
Common questions
English to Portuguese, answered.
Can SubFlow recognise English speech automatically?
Yes. Leave the source on automatic detection or pick English yourself. Accents, fast speech and overlapping speakers are handled well by the Whisper model; background music is the most common cause of a dropped line.
Will the Portuguese subtitles fit on screen?
Portuguese reads comfortably at 15–17 characters per second with about 42 characters per line. Portuguese is about 15–30% longer than the English original. Review the longest captions and split any that crowd two lines.
Can I dub a English video into Portuguese?
Yes, on the Pro plan. The Portuguese dub uses a pt-BR voice and is spoken from the translated subtitles, so correcting a line in the editor changes what the voice says.
Can I export English and Portuguese together?
Yes. Export the Portuguese subtitles alone, the original English, or a bilingual SRT with both on each caption — or burn either into the video.