Calculate audiobook listening time, production costs, and duration estimates from word count, pages, or recording hours.
Calculate audiobook listening time, production costs, and duration estimates from word count, pages, or recording hours.
Enter values above and click Calculate — results will appear here with the formula explained.
Audiobook listening time is original duration divided by playback speed. Time saved is the difference. For estimates from text, audio duration is word count divided by narration speed (150-160 wpm is standard for audiobooks, faster than 130 wpm conversational but slower than 180 wpm podcast). Page count uses ~300 words per page as average.
Production cost is finished hours times cost per finished hour (PFH). PFH $250-500 covers narration, editing, proofing and mastering for indie production. Recording is typically 2-3× finished length, editing 3-4×, so a 10-hour book needs 25 hours recording and 30 hours editing.
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Audiobook listening time is original duration divided by playback speed. Time saved is the difference. For estimates from text, audio duration is word count divided by narration speed (150-160 wpm is standard for audiobooks, faster than 130 wpm conversational but slower than 180 wpm podcast). Page count uses ~300 words per page as average. Formula: New duration = original / speed; Time saved = original - new; Audio hours = words / (wpm*60); Cost = finishedHours * costPerHour
Audiobook Calculator: Calculate audiobook listening time, production costs, and duration estimates from word count, pages, or recording hours. Formula: New duration = original / speed. Example: A 10-hour audiobook at 1.
Calculate audiobook listening time, production costs, and duration estimates from word count, pages, or recording hours. Formula: New duration = original / speed; Time saved = original - new; Audio hours = words / (wpm*60); Cost = finishedHours * costPerHour
| Field | What to enter |
|---|---|
| Calculation mode | Enter a value |
| Original duration (hours) | Use HH:MM format or decimal hours |
| Playback speed | e.g. 1.5 |
| Word count | Typical novel: 80k-100k words |
| Page count | Typical book pages |
| Narration speed (words/min) | Average audiobook narration: 150-160 wpm |
| Finished hours | Final audiobook length |
| Recording hours (optional) | e.g. 25 |
| Editing hours (optional) | e.g. 30 |
| Cost per finished hour ($) ($) | Industry: $250-500 PFH |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
Audiobook listening time is original duration divided by playback speed. Time saved is the difference. For estimates from text, audio duration is word count divided by narration speed (150-160 wpm is standard for audiobooks, faster than 130 wpm conversational but slower than 180 wpm podcast). Page count uses ~300 words per page as average.
Production cost is finished hours times cost per finished hour (PFH). PFH $250-500 covers narration, editing, proofing and mastering for indie production. Recording is typically 2-3× finished length, editing 3-4×, so a 10-hour book needs 25 hours recording and 30 hours editing.
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A 10-hour audiobook at 1.5× speed takes 6 hours 40 minutes, saving 3 hours 20 minutes. A 90,000-word novel at 155 wpm is about 9.68 hours (9:41) of audio. At $400 per finished hour, that 10-hour book costs $4,000 to produce.
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