Speed can save hours—if comprehension remains high. Use the speed calculator to test your real book length.

Speed vs Time

Time scales inversely with speed. At 1.5×, a 10h title becomes ~6h40m.

When Not to Speed Up

Dramatic fiction and dense technical texts often benefit from 1.0×–1.25×.

FAQs

Is 2× always better?

No—if retention drops, total time increases due to re-listening.

Typical speeds?

1.25×–1.5× are common for non‑fiction.