Guides
How to measure, plan and actually finish YouTube playlists — with numbers.
Looking for something to watch rather than how to watch it? See the best free courses on YouTube, ranked by total hours.
- Add a YouTube course to your calendar (Google, Apple, Outlook) · 3 min read
Turn a playlist into calendar sessions — one event per study day listing that day's videos — and import the .ics file into Google Calendar, Apple Calendar or Outlook on desktop and mobile. - How long does it take to watch a YouTube playlist? · 4 min read
The quick answer, the maths behind it, what changes at 1.5× or 2×, and how many days a playlist really takes at an hour a day. - How to finish a long YouTube course (a schedule that survives week two) · 4 min read
A step-by-step method for turning a 30-, 50- or 100-hour playlist into daily sessions you'll actually complete — with a worked example and the mistakes that sink most plans. - How to see the total length of a YouTube playlist · 4 min read
Five ways to get the total duration of a playlist — a calculator, by hand, a browser extension, a spreadsheet, or the API — with the exact steps on desktop and mobile. - Track your progress through a YouTube playlist (no account needed) · 3 min read
How to see how far through a playlist you are and how much time is left — with YouTube's own progress bars, with the calculator's watched checkboxes, or with a spreadsheet — and how to share your progress with a link. - Watch time at 1.25×, 1.5× and 2× — does speed-watching hurt learning? · 4 min read
How much time faster playback actually saves, what the research says about comprehension at 1.5×, 2× and beyond, and how to pick a speed for lectures, tutorials and code-alongs. - Why the playlist duration looks wrong (and what "unavailable" means) · 4 min read
Private and deleted videos, region blocks, live streams, caching and duplicates — every reason a playlist total can differ from what you expected, and how to read the numbers correctly. - YouTube playlist duration API — get playlist length programmatically · 5 min read
Two ways to get a playlist's total duration in code — our JSON endpoint, or the YouTube Data API v3 directly — with working JavaScript and Python, ISO 8601 parsing, pagination and the quota maths.