YouTube Playlist Length Calculator

This YouTube playlist length calculator adds up the duration of every video in a playlist and tells you how long it takes to watch — at normal speed and at 1.25×, 1.5×, 1.75×, and 2×, plus any custom speed you type. You also get the video count, the average, shortest, and longest video, and a From/To range so you can measure just part of a course or see how much is left. It reads public and unlisted playlists, needs no sign-in or API key, and handles up to 500 videos per run.

How to check how long a YouTube playlist is

1. Open the playlist on YouTube. On a computer, click the playlist’s title; in the app, open the playlist and tap Share → Copy link.
2. Paste the link above and press Calculate. A watch link that contains list= also works, as does the bare playlist ID (the part after list=).
3. The tool loads the playlist in pages of about 100 videos and shows progress as it goes.
4. Read the total and the speed table, or set From and To to measure a range.

What the numbers mean

Total length

The sum of every counted video’s running time, as YouTube shows it on the thumbnail — hours, minutes, and seconds. It’s the time the videos themselves take, not including ads, buffering, or the moments you pause to take notes.

Watching at faster speeds

Each faster speed divides the total by that factor: a 10-hour playlist takes 8 hours at 1.25×, 6 hours 40 minutes at 1.5×, and 5 hours at 2×. The “You save” column shows the difference from normal speed. YouTube’s player offers speeds from 0.25× up to 2× on computers, and on desktop you can click and hold the video to play at 2× temporarily. YouTube Premium’s Auto speed on Android can go up to 4×, but only for some English content — so the custom field accepts anything from 0.25× to 4×.

Average, shortest, and longest

The average tells you how to pace yourself: a playlist averaging 8 minutes fits a coffee break per video, one averaging 50 minutes doesn’t. The shortest and longest videos flag outliers — a 3-hour livestream recording hiding in a playlist of short lessons changes your plan.

Elapsed at end

Open All videos with running time to see each video’s length and the cumulative time when it ends. If you stop at video 23, that column tells you exactly how far through the playlist you are; set From to 24 to see what’s left.

Calculate only part of a playlist

Ranges are the most useful feature for courses and lecture series. Halfway through a 120-video programming course? Set From to the next lesson and To to the last one, and the calculator shows the remaining time at each speed. Planning a week of study? Pick the videos you want to cover and see whether they fit the hours you have. The range uses the video numbers shown in the list, so positions match what you see in the playlist.

Plan how long a course will take

Once you know the total, turning it into a schedule is simple division. Say a course runs 18 hours and you can give it 45 minutes a day. At normal speed that’s 24 days; at 1.5× the course takes 12 hours, or 16 days; at 2× it’s 9 hours, or 12 days. Leave some slack — pausing to try things, rewinding a tricky explanation, and taking notes usually add a good chunk on top of the running time. Use Copy summary to paste the totals into your notes or calendar, orDownload CSV to get every video with its length for a spreadsheet tracker where you tick lessons off as you go.

Long playlists and the 500-video cap

YouTube displays at most 5,000 videos in a playlist. To keep the calculator fast and fair for everyone, it reads the first 500 videos of any playlist and stops there. When a playlist is longer, the result says so clearly and shows the total for the videos it read — it never silently pretends a partial total is complete. Channel “Uploads” playlists for big channels can run into the thousands; for those, the total of the first 500 (the most recent uploads) is usually what you want anyway.

Why some videos aren’t counted

• Deleted, private, or blocked videos. YouTube hides these from the playlist entirely, often with a note such as “3 unavailable videos are hidden.” The calculator shows that note when YouTube gives it, and its count can be lower than YouTube’s.
• Live streams and upcoming premieres. A stream that is live right now, or a premiere that hasn’t started, has no fixed length yet. These are listed but left out of the totals, and marked LIVE or UPCOMING.
• Members-only videos. They may appear in the list, but YouTube doesn’t show signed-out visitors their running time, so they aren’t added up.

Playlists the tool can’t read

Watch Later, Liked videos, and private playlists belong to your signed-in account, so no website can read them without your password — and you should never give one out. The fix takes a minute: create a new playlist set to Unlisted, add the videos, and paste that playlist’s link here. Our guide on exporting your YouTube Watch Later list walks through moving videos into a regular playlist. YouTube Mixes (links starting withlist=RD) are endless, auto-generated queues with no fixed length, so they can’t be measured either.

Accuracy

Durations come from the same running times YouTube displays on each thumbnail, so totals match YouTube to the second. Video positions count only the videos YouTube actually shows, which is why numbering can differ from the playlist’s own count when videos are hidden. Nothing about your request is stored: the page sends the playlist ID to Marqly’s server, which asks YouTube for the public list and returns only each video’s ID, title, and length to your browser.

Related tools and guides

Measuring a playlist is often the first step of studying it. The YouTube transcript tool pulls the spoken text of any video in it, theYouTube summarizer condenses a long lecture, and thechannel ID finder gives you any channel’s uploads playlist so you can measure everything it has published. To keep a queue you’ll actually finish, see Marqly’swatch later app for YouTube and our guide tosaving YouTube videos to watch later.