Estimate audiobook duration from page count or word count (with playback speed).
1. Enter your manuscript word count, or use pages input or chapters
input.
2. Select a narrator WPM or average reading speed (common presets:
150, 160, 170 WPM).
3. The calculator instantly shows estimated listening time, total audiobook
duration, HH:MM:SS format, and predicted finish time.
4. Use results for production planning, narrator pay estimates,
listening session planning, and scheduling multiple audiobooks. Supports batch
calculation for several books at once.
The Audiobook Length Calculator estimates the total duration of an audiobook based on written content. It converts word count, page count, or chapter estimates into listening time using an average narration speed measured in words per minute (WPM). The result is shown as total audiobook length in hours, minutes, or HH:MM:SS format.
The total number of words in the manuscript. Word count is the most accurate input for calculating audiobook duration.
If the exact word count is unavailable, pages can be converted using an average words-per-page estimate.
Narration speed represents how many words are spoken per minute. Common audiobook narration speeds range from 150 to 170 WPM, depending on style and language.
The calculator outputs the estimated audiobook length, expressed in:
This represents the full listening time at normal narration speed, without playback speed adjustments.
Audiobook length is calculated using standard narration math based on words per minute.
Formula:
Listening Time (minutes) = Word Count ÷ Narration Speed (WPM)
Listening Time (hours) = (Word Count ÷ WPM) ÷ 60
This method is widely used for audiobook duration estimation and production planning.
If you do not know the exact word count, audiobook length can be estimated by converting pages or chapters into words using an average value. This allows approximate audiobook duration calculation when only manuscript structure is available.
The result is less precise than word count but useful for early planning.
The average audiobook length typically ranges between 6 and 12 hours, depending on genre, narration style, and writing density. Short nonfiction audiobooks may be under 6 hours, while epic fiction and academic works often exceed 15 hours.
Audiobook length varies widely and should always be calculated per manuscript.
| Word Count | Narration Speed (WPM) | Estimated Audiobook Length |
|---|---|---|
| 50,000 | 150 | ~5 hours 33 minutes |
| 90,000 | 150 | ~10 hours |
| 120,000 | 160 | ~12 hours 30 minutes |
| 10,000 | 160 | ~1 hour |
These examples show how audiobook duration increases directly with word count.
Audiobook length accuracy depends on:
Pauses, dramatic narration, or dialogue-heavy content may slightly increase total audiobook duration compared to the estimate.
To keep the intent clear, this calculator does not calculate:
Those calculations belong to separate audiobook tools.
This Audiobook Length Calculator helps authors, narrators, and listeners accurately estimate total audiobook duration, listening time, and recording length. Whether converting word count, pages, or chapters, predicting finish time, or planning multi-book listening sessions, it provides precise results in HH:MM:SS format and supports advanced playback speed adjustments.