Audiobook Speed Calculator

Find time saved by speeding up an audiobook.

Listening time 8

Time saved 4

Formula: new time = hours ÷ speed

Step-by-step with your numbers:

1. Values used:

2. Book length at 1× = 12

3. Playback speed = 1.5 ×

5. Listening time = Book length at 1× / Playback speed = 12 / 1.5 = 8

6. Time saved = 4

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See how much faster you can finish an audiobook.

The math behind it

new time = original hours ÷ playback speed.

12 h at 1.5× → 8 h (4 h saved).

Too fast?

Many settle at 1.25× for comfortable comprehension.