Free tool
Audiobook length calculator
Enter your word count to see how long your audiobook will be, how many Warblize credits it needs, and what a human narrator would cost.
How the calculation works
Audio length is your word count divided by words per hour. A narrator reads about 9,000 words in an hour of finished audio, so a 90,000-word novel is about 10 hours. Pace shifts with genre: dense non-fiction runs slower and a fast thriller a little faster.
Warblize charges by finished minutes, rounded up to whole credits. See the full table in the word count to hours guide, the cost breakdown and current pricing.
Common lengths
- Romance: 60,000 to 90,000 words, about 7 to 10 hours
- Fantasy: 90,000 to 150,000 words, about 10 to 17 hours
- Thriller: 70,000 to 100,000 words, about 8 to 11 hours
- Non-fiction: 50,000 to 80,000 words, about 6 to 9 hours
- Self-help: 40,000 to 60,000 words, about 4.5 to 6.5 hours
Common questions
How many words are in an hour of audiobook?
About 9,000 words per hour of finished audio. Dense non-fiction runs slower and fast thrillers a little quicker.
How long is a 100,000-word audiobook?
About 11 hours at 9,000 words per hour.
How do I find my word count?
Word processors show it in the status bar or under Tools. Warblize also shows the finished length after you upload your file.
How many credits does my book need?
One credit covers up to 60 minutes of finished audio, rounded up. A 10-hour novel needs about 10 credits.
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