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# Subtitle reading speed

Measure each subtitle cue's reading speed and duration against a guideline and flag the cues that read too fast or sit wrong on screen.

Paste a subtitle file and press Check reading speed.

Reading speed counts every visible character, spaces and punctuation included, and skips formatting tags; a line break counts as one space. Words are letter and digit runs, so don't is one word and a dash is none. Every cue that reads too fast gets a needs-at-least screen time, its characters divided by the characters-per-second limit; when the gap to the next cue cannot supply that time within the maximum duration, the text needs condensing. Up to 5,000 cues per check, files up to 2 MB, everything worked out in this tab.
OptionsCheck reading speed

## More video tools

- [Convert videos](/videos/convert)
- [Trim videos](/videos/trim)
- [Video to GIF](/videos/to-gif)
[All video tools](/videos)

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