Subtitle frame-rate conversions
When subtitles drift further out of sync as a video plays, the subtitle and the video usually run at different frame rates. Pick the pair that matches your files.
| Conversion | Factor | Drift per hour |
|---|---|---|
| 23.976 → 25 fps | 0.95904 | 2 min 27 s |
| 25 → 23.976 fps | 1.04271 | 2 min 34 s |
| 24 → 25 fps | 0.96000 | 2 min 24 s |
| 25 → 24 fps | 1.04167 | 2 min 30 s |
| 23.976 → 24 fps | 0.99900 | 3.6 s |
| 24 → 23.976 fps | 1.00100 | 3.6 s |
| 29.97 → 25 fps | 1.19880 | 11 min 56 s |
| 25 → 29.97 fps | 0.83417 | 9 min 57 s |
Any other combination is available in the frame rate converter. Read why frame rates cause drift.