Length and layout
English is more characters than the Korean original. Both languages are written left to right, so the layout does not change — only the wording and line length do.
한국어 → English
Translate Korean video into English subtitles
Upload a video in Korean. SubFlow transcribes the speech, translates every caption into English, and keeps both languages on the same timeline so you can review them side by side — then export subtitles, a subtitled video, or a English dub.
30 free minutes monthly · No credit card
What changes
Korean and English, side by side.
| Korean (spoken) | English (subtitles) | |
|---|---|---|
| Script | Hangul | Latin |
| Direction | Left to right | Left to right |
| Reading speed | about 12 chars/sec | 15–17 chars/sec |
| Line length | about 16 chars | about 42 chars |
| AI dub voice | ko-KR | en-US |
Getting English right
English subtitles read fastest when a line breaks after a clause, not mid-phrase — the editor lets you move the break without touching the timing.
Workflow
From Korean to English in three steps.
Upload the Korean video
Add a video or audio file. SubFlow transcribes the Korean speech into timed captions.
Translate into English
Pick English 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 English or bilingual subtitles, a subtitled video, or a English dub.
Common questions
Korean to English, answered.
Can SubFlow recognise Korean speech automatically?
Yes. Leave the source on automatic detection or pick Korean yourself. Korean speech is transcribed in Hangul with spacing between words, the way Korean is normally written.
Will the English subtitles fit on screen?
English reads comfortably at 15–17 characters per second with about 42 characters per line. English is more characters than the Korean original. Review the longest captions and split any that crowd two lines.
Can I dub a Korean video into English?
Yes, on the Pro plan. The English dub uses a en-US voice and is spoken from the translated subtitles, so correcting a line in the editor changes what the voice says.
Can I export Korean and English together?
Yes. Export the English subtitles alone, the original Korean, or a bilingual SRT with both on each caption — or burn either into the video.