PROGRESS · 3 MIN READ
Calculate a range or the videos you have left
Use original video numbers and individual watched marks without losing track of missing entries.
Updated September 8, 2026 · PlaylistLengths product guide
Choose what you mean by remaining
If you have finished video 12, select What I have left and enter 12. Calculation starts with video 13. If you still need to watch video 12, choose Include that video.
This setting works at whole-video boundaries. It does not inspect the position of a video playing in YouTube or read your account history. For an exact resume point in a generated schedule, use the timestamp link in that schedule.
Both range endpoints count
A specific range of 4–7 contains positions 4, 5, 6 and 7. Selecting 7–7 is valid and calculates a single original entry. If a position is unavailable, it still belongs to the range.
For example, suppose videos 4, 5 and 6 have durations of 120 seconds, unavailable and 180 seconds. Range 5–6 contains two entries and 180 counted seconds. The unknown duration is shown as excluded, not silently removed from the numbering.
Track non-consecutive progress
Open video details to mark individual entries as watched. This helps if you skip around a course. The progress summary and dated schedule use these marks; the main source total remains the time of the selected range.
Repeated appearances of the same video are separate playlist entries. Marking one appearance does not mark every other appearance. Save progress on this device if you want those marks restored next time.
Sorting never renumbers the source
You can sort the displayed table by duration or title, but original numbers stay visible. Range calculations and schedules continue to follow YouTube order. This makes a saved range meaningful even when the table is arranged differently.
Finishing the last known entry in a complete playlist returns zero remaining time. An incomplete playlist cannot establish that there are no more videos after the loaded segment.