Find out how much of your audiobook you’ve completed.
Time Remaining:
The Audiobook Percentage Calculator calculates how much of an audiobook has been completed as a percentage. It compares the time listened to the total audiobook duration and outputs a single, clear value: percentage completed (%).
This tool is designed for listeners who want to calculate audiobook completion accurately when their app does not clearly display percentage read.
The full length of the audiobook, entered in hours, minutes, or seconds. This value represents 100% of the audiobook.
The amount of time already listened. This can be taken directly from any audiobook player that shows elapsed or listened time.
Both inputs must use the same time units for accurate calculation.
The calculator outputs the percentage of the audiobook completed, expressed as a numeric percentage (%).
This value represents the proportion of total audiobook duration that has already been listened to.
Percentage Completed (%) = (Time Listened / Total Duration) × 100 Time Remaining = Total Duration - Time Listened Adjusted Time = Time Remaining ÷ Playback Speed
This formula ensures accurate completion rate, adjusted completion, and time estimation for all audiobook formats. Calculations support multi-session tracking and personal tracking with progress dashboards.
The audiobook percentage is calculated using a standard percentage formula based on time.
Percentage Completed (%) =
(Time Listened ÷ Total Audiobook Duration) × 100
The result shows how much of the audiobook has been completed relative to its full length. The calculation does not depend on the audiobook platform, file type, or playback method.
To determine the percentage read on an audiobook:
This method works even when the audiobook app does not display percentage completed.
Yes. The calculator is platform-independent.
It works with Audible, Spotify audiobooks, iPhone audiobook players, MP3 audiobooks, and any other audiobook app that displays total duration and listened time.
The calculation is based solely on time values, not platform-specific tracking systems.
Audiobook percentage accuracy depends on:
Skipping or replaying sections can change the listened time shown by the player, which may affect the calculated percentage.
Playback speed does not change how the percentage is calculated, because the formula uses actual time listened, not perceived speed.
To maintain accuracy and intent clarity, this calculator does not calculate:
Those functions belong to separate audiobook tools.
| Total Duration | Time Listened | Percentage Completed |
|---|---|---|
| 10 hours | 2.5 hours | 25% |
| 8 hours | 4 hours | 50% |
| 12 hours | 9 hours | 75% |
These examples show how audiobook percentage is derived directly from time comparison.