YT Timestamp

YouTube Playlist Length Calculator

Calculate the total watch time of any public YouTube playlist — including speed-adjusted estimates.

Please enter a valid YouTube playlist URL or ID.
Fetching videos… 0 / 0

Playlist Info

Playlist thumbnail
—
— videos —

Duration Summary

—
Total Duration
—
Videos
—
Average Length
—
Days of Content

Playback Speed Estimates

Speed Time to Watch Time Saved

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YouTube Playlist Length Calculator — User Guide

What Does This Tool Do?

The YouTube Playlist Length Calculator fetches every video in a public YouTube playlist and calculates the total watch time. Whether you're planning a study session, binge-watching a course, or scheduling content, this tool tells you exactly how long it will take.

How to Use

1
Go to any public YouTube playlist and copy the URL from your browser's address bar.
2
Paste the URL into the input field above. The tool accepts full playlist URLs or just the PLxxxxxxx playlist ID.
3
Click Calculate. For large playlists, a progress bar shows how many videos have been fetched.
4
View total duration, average video length, and speed-adjusted watch time estimates.

Tips

Watching a course? Use the 1.5x or 2x speed estimate to plan how much time you actually need to finish it.

Large playlists: Playlists with hundreds of videos may take a few seconds to calculate — the progress bar keeps you updated.

Private playlists: Only public playlists are supported. Private and unlisted playlists are not accessible via the YouTube API.

Troubleshooting

Playlist not found

Make sure the playlist is public. Check the URL contains list=PL or similar. The URL should look like: https://www.youtube.com/playlist?list=PLxxxxxxx

Fewer videos than expected

YouTube may not return deleted or private videos within a playlist. The count shown is the number of accessible public videos.

Frequently Asked Questions

Paste the playlist URL into the input field and click Calculate. The tool fetches all videos, sums their durations, and shows the total watch time along with speed-adjusted estimates.
No. Only public playlists are supported. Private and unlisted playlists are not accessible via the YouTube API without authentication.
YouTube's API returns a maximum of 50 videos per request. A playlist with 500 videos requires 10 separate API calls. The progress bar shows how many videos have been fetched so far.
The tool accepts full playlist URLs (e.g. https://www.youtube.com/playlist?list=PLxxxxxx) and bare playlist IDs (e.g. PLxxxxxx). Both formats work.
YouTube includes deleted, private, and unavailable videos in its displayed count. This tool can only fetch accessible public videos, so the count may be slightly lower.
Yes — 100% free, no signup, no account required. Just paste the URL and calculate.
Yes. The tool is fully responsive and works on smartphones, tablets, and desktops. Both dark mode and light mode are supported.