📋

YouTube Playlist Duration Calculator

Calculate the total runtime of any public YouTube playlist — sum of every video's length, plus video count and average duration.

Reviewed by UpTube TeamUpdated July 15, 2026

To calculate a YouTube playlist's total length, paste the playlist URL or ID and this tool sums the duration of every video in it, returning the total watch time, video count, and average video length. Useful for planning a course-style playlist's runtime, checking how long a music playlist will play, or estimating watch-through time before recommending one. Free, instant, no signup.

How to use the Playlist Duration Calculator

1
Paste the playlist link
Enter the playlist's URL (the one with ?list= in it) or its raw playlist ID.
2
Calculate the total
Click Calculate. The tool fetches every video's duration through the YouTube API and sums them.
3
Read the totals
See the total runtime, the number of videos counted, and the average length per video.

About the Playlist Duration Calculator

What it does

YouTube shows a playlist's video count but never its total runtime — you'd have to add up every video's length by hand. This tool does that automatically: paste a playlist link and it fetches every video's duration and sums them into a total.

Who uses it, and why

It's useful in a few different situations: checking how long a course-style or tutorial playlist will take to watch through, verifying a music playlist's total playtime before an event or workout, or auditing your own channel's playlist organization to see if a series has grown too long for a single sitting.

How it works

The calculator paginates through the entire playlist (up to 500 videos) and batches the duration lookups, so it works on both short curated lists and large channel-length playlists. Results include total duration, video count, and the average length per video.

Reference: YouTube Data API — playlistItems reference

Features

✓Sums duration across an entire public playlist
✓Handles playlists up to 500 videos
✓Shows total runtime, video count, and average length
✓Works with any playlist URL format or a raw playlist ID
✓Official YouTube API — accurate down to the second
✓Free, instant, no signup

Frequently asked questions

Does this work on private or unlisted playlists?

Only if the playlist (and its videos) are public. Private playlists aren't accessible through the public API this tool uses — the same restriction applies to any third-party playlist tool.

What's the largest playlist this can calculate?

Up to 500 videos. This covers the overwhelming majority of curated and course-style playlists; channel-wide 'all uploads' playlists on very large channels may exceed this and will be measured up to the cap.

Why is my playlist's total slightly different from what I expected?

Private, deleted, or region-restricted videos within a playlist are skipped since their duration isn't accessible, which can make the calculated total slightly lower than the playlist's full video count would suggest.

Can I use this to check my own upload consistency?

Indirectly — pairing the average video length here with your upload frequency data gives a rough sense of total content volume over time, though a dedicated analytics tool is better for tracking upload cadence specifically.