Tools · Reading

Audiobook Calculator

Our free Audiobook Calculator tells you exactly how long any audiobook will take at your preferred playback speed. Set a target finish date and build a daily listening plan that works.

words
Average novel: 80-100K · Short: 40-80K · Epic: 100K+
Listening Time at speed
@ 1× speed
@ 1.5× speed
@ 2× speed
Time Saved

Audio Book Calculator

Audiobooks are interesting in some way. You don't really think about time when you first start. You just hit "play." And it seems like you'll "finish it soon." Then you look at how long it will take. And all of a sudden, it doesn't seem that short anymore.

Why people don't think audiobook time is long enough

When it comes to books, most people don't think in hours. They think in pages. Or parts. So when something says "10 hours long," it doesn't register right away. Reading for ten hours and listening for ten hours don't feel the same. And that's where the problem starts.

When this becomes useful

It usually happens when you're trying to make plans. Not just listening for fun. Like:

That's when you stop making guesses.

Why it's not a good idea to guess here

At first, you might think: "I'll listen for an hour every day." A 10-hour audiobook should take 10 days to listen to. But that doesn't happen very often. You skip some days. You listen more on some days. You speed up at times. The real time keeps changing.

The small thing that people don't notice

Speed of playback. One time is not the same as 1.5 times. Or two times. A 10-hour audiobook turns into: ~6.5 hours at 1.5x and ~5 hours at 2x. That makes a big difference. And most people don't do that right.

Another level that most people don't see

Speed of the narrator. Audiobooks don't all have the same speed of speech. Some are slower. A few are quicker. So, even if two books have the same number of words, they can feel like they take different amounts of time to read.

What this calculator really does

It takes all of this and makes it easier. You type:

And it tells you how long it will take. No guessing. No rough guesses.

Why the number of words matters

Some people don't have a time limit. They only know how many words there are. For example: 70,000 words or 90,000 words. It's not easy to turn that into listening time by hand. Because you should know: Words per minute and Multiplier of speed. That's when things get messy. And this is where the tool comes in handy again. It does everything at once instead of figuring it out step by step. You just put in values. And it tells you how long it will take.

A small example

Let's say: 80,000 words. Average speed of narration. It could take 8 to 9 hours at a normal speed. Now speed up the playback. And then it just drops. People want that kind of clarity.

Why people begin to use speed controls

Not everyone listens at 1x. 1.25x is better for some people. Some go to 1.5 times. Some even two times. Because it cuts down on time. They don't always know how much time they're really saving, though. That's when this becomes useful again. Instead of making a guess: "Maybe it will be quicker", you get a clear picture. And that makes planning easier.

This tool works best for planning

You don't need to do math to listen casually. But planning does. Like:

That's where being clear is important. People notice this later too. Long books feel different. A 5-hour audiobook seems doable. It seems like a big deal to listen to a 20-hour audiobook. And it's hard to break that down without doing the math.

What happens if you don't do the math?

You don't give enough credit. You put it off. You don't finish. Not because you don't want to. Because you didn't make plans.

What happens when you do this?

You know how long it takes. You split it up. You finish it. It's a simple difference.

Another thing people know

How fast you listen affects how well you understand. Faster isn't always better. People change, though. And every change makes the total time different.

Final Thoughts

Audiobooks are easy to understand. Just hit play. But as soon as you try to plan them, things change.

Conclusion

An audiobook calculator doesn't change how you listen. It just shows you the time that has passed. So you don't have to guess. You just know. And that's all it takes to make better choices.