Flagship tool

Playlist length calculator

Paste any public playlist or watch URL that includes list=. You get exact watch time, optional slot ranges, and speed-adjusted wall clock.

We ship clarity first: one source of truth for duration, then we expand the suite without diluting trust.

From the blog

Related guides

Posts tagged for this tool appear first; then general articles. Open the blog for the full archive.

2026-03-30
Complete guide to YouTube playlist length, watch time, and planning your viewing
A deep, practical guide to understanding playlist duration, how APIs measure totals, playback speed, ranges, and how to interpret numbers when videos are missing or region-locked.
10 min read
2026-03-25
YouTube Data API and playlist duration: a short technical overview
How playlistItem and video resources relate to duration fields, quotas, and why some videos may be missing from a total.
6 min read
2026-03-20
Playlist watch time and playback speed: what the numbers mean
Why full duration stays the same at 2× speed, how wall-clock time is estimated, and how to plan longer courses or series.
4 min read

Answers focused on this tool. The homepage has a broader FAQ for the whole site.

Why use the dedicated playlist page instead of only the home calculator?: Same calculator and API—this page is a focused URL you can bookmark or share. Totals, ranges, playback-speed estimates, and exports work identically.
Can I use a watch URL instead of a playlist link?: Yes, if the URL includes list= with a public playlist ID. The server resolves playlist items through the YouTube Data API the same way as a playlist?list= link.
What if some videos are missing from the total?: Unavailable, private, or region-blocked videos may be omitted from API responses. Your From/To range also limits which slots are summed.
Do exports include every column shown in the table?: JSON is the fullest export; CSV and summary text focus on titles, indices, and durations. Pick the format that fits your spreadsheet or notes workflow.