Playback Speed Calculator
Watching or listening faster? Enter the original length and the speed. The calculator shows the new length and the time you save. It works for videos, podcasts, audiobooks, lectures and voice messages.
Result
Time at this speed–
Time saved–
Quick reference
| Length | 1.25x | 1.5x | 1.75x | 2x |
|---|---|---|---|---|
| 10 min | 8 min | 6 min 40 s | 5 min 43 s | 5 min |
| 30 min | 24 min | 20 min | 17 min 9 s | 15 min |
| 1 h | 48 min | 40 min | 34 min 17 s | 30 min |
| 1 h 30 min | 1 h 12 min | 1 h | 51 min 26 s | 45 min |
| 2 h | 1 h 36 min | 1 h 20 min | 1 h 8 min | 1 h |
Questions
How do I calculate time at a faster playback speed?
Divide the original length by the speed. A 60-minute video at 1.5x takes 60 ÷ 1.5 = 40 minutes.
How much time does 2x speed save?
Exactly half. At 2x a 1-hour video takes 30 minutes, so you save 30 minutes.
Does slower speed (0.75x) make it longer?
Yes. Speeds below 1x make playback longer. A 30-minute video at 0.75x takes 40 minutes.