YouTube Playlist Length Calculator
Paste video durations to see the full runtime, average length, and the time you can save at faster playback speeds.
Video durations
Paste one duration per line. Your list stays in this browser.
Playlist runtime
4 valid videos
Estimated finish: 10:48:45
Estimate only. Invalid lines are excluded from the total.How the calculator works
Enter one duration per line using seconds, minutes and seconds, or hours, minutes and seconds. Blank lines are ignored and invalid lines are identified.
The calculator adds valid durations in seconds, divides the total by your selected playback rate, then rounds the display to the nearest second.
watch time = total duration ÷ playback speedSupported formats
- 45
- 12:30
- 1:05:20
Frequently asked questions
How do I calculate the length of a YouTube playlist?+
Paste one video duration per line. The calculator converts each timestamp to seconds, adds them, and formats the total as hours, minutes, and seconds.
Can I calculate playlist time at 1.5× or 2× speed?+
Yes. Playback time equals the original total divided by the selected speed. The result is rounded to the nearest second.
Does this tool read my YouTube account?+
No. It processes only the durations you paste, locally in your browser, and does not connect to YouTube or upload your list.