5 Hours at 1.5x Speed = 3 Hours 20 Minutes — Full Guide & Chart
If you are wondering how long a 5-hour audiobook, video course, or podcast takes when played at 1.5x speed, here is the direct answer:
It will take 200 minutes, which is 3 hours and 20 minutes.
That means you save 1 hour and 40 minutes — over 33% of the original time. The calculation is straightforward: divide the original duration by the playback speed.
Below, we will walk through the math, provide a quick lookup table, and show you how to calculate any duration at any speed with our Playback Speed Calculator.
Quick Lookup: Common Durations at 1.5x Speed
This table shows how long popular audiobook and video lengths take when played at 1.5x speed.
| Original Duration | New Duration at 1.5x Speed |
|---|---|
| 1 Hour | 40 Minutes |
| 2 Hours | 1 Hour 20 Minutes |
| 5 Hours | 3 Hours 20 Minutes |
| 8 Hours | 5 Hours 20 Minutes |
| 10 Hours | 6 Hours 40 Minutes |
| 12 Hours | 8 Hours |
How to Calculate 5 Hours at 1.5x Speed
The formula for calculating time at any playback speed is simple:
Let us apply it to 5 hours at 1.5x:
- Convert to Minutes:
5 hours = 300 minutes - Apply the Formula:
300 minutes / 1.5 = 200 minutes - Convert Back:
200 minutes = 3 hours and 20 minutes
How Much Time Does 1.5x Speed Save?
At 1.5x playback speed, you save 33% of the total time. For a 5-hour audiobook, that is 1 hour and 40 minutes saved. Over the course of a few audiobooks, the savings become significant:
- 1 audiobook (5 hours): save 1 hour 40 minutes
- 3 audiobooks (15 hours): save 5 hours
- 6 audiobooks (30 hours): save 10 hours
The formula for time saved is:
At 1.5x, the multiplier is 1 - 1/1.5 = 0.333, meaning you save one-third of every minute you listen.
Custom Duration? Use the Playback Speed Calculator
What if your audiobook is 5 hours and 45 minutes, or you want to listen at 1.75x speed? Manual calculation gets tedious quickly.
Use the Playback Speed Calculator for any custom combination of hours, minutes, seconds, and speed. It instantly shows the completion time and time saved.
The Complete Time Conversion Chart (1.25x, 1.5x, 1.75x, 2x)
Use this chart to see how common audiobook and video lengths change across different playback speeds.
| Original Length | 1.25x Speed | 1.5x Speed | 1.75x Speed | 2.0x Speed |
|---|---|---|---|---|
| 30 mins | 24m | 20m | 17m 9s | 15m |
| 40 mins | 32m | 26m 40s | 22m 51s | 20m |
| 50 mins | 40m | 33m 20s | 28m 34s | 25m |
| 1 hour | 48m | 40m | 34m 17s | 30m |
| 2 hours | 1h 36m | 1h 20m | 1h 8m | 1h |
| 3 hours | 2h 24m | 2h | 1h 42m | 1h 30m |
| 4 hours | 3h 12m | 2h 40m | 2h 17m | 2h |
| 5 hours | 4h | 3h 20m | 2h 51m | 2h 30m |
| 6 hours | 4h 48m | 4h | 3h 25m | 3h |
| 7 hours | 5h 36m | 4h 40m | 4h | 3h 30m |
| 8 hours | 6h 24m | 5h 20m | 4h 34m | 4h |
| 9 hours | 7h 12m | 6h | 5h 8m | 4h 30m |
| 10 hours | 8h | 6h 40m | 5h 42m | 5h |
| 11 hours | 8h 48m | 7h 20m | 6h 17m | 5h 30m |
| 12 hours | 9h 36m | 8h | 6h 51m | 6h |
Is 1.5x Speed Good for Audiobooks?
Yes! 1.5x is widely considered the sweet spot for audiobook listening. It cuts listening time by a third while maintaining excellent comprehension. Many popular audiobook apps like Audible and Libby include 1.5x as a default speed option for good reason.
If you are new to speed listening, start at 1.2x or 1.25x and gradually work up to 1.5x. Most listeners adjust within a few hours and never go back to normal speed.
For more on optimizing your listening, check out the Audiobook Speed Calculator.
Frequently Asked Questions
How long is a 5-hour audiobook at 1.5x speed?
A 5-hour audiobook at 1.5x speed takes exactly 3 hours and 20 minutes (200 minutes). You save 1 hour and 40 minutes.
Is it hard to listen at 1.5x speed?
Most people adjust within a few hours. Start at 1.25x and gradually increase. Once adapted, comprehension stays high — your brain processes speech faster than most narrators speak.
How much time do I save listening at 1.5x speed?
You save exactly one-third (33%) of the original listening time. For a 5-hour book, that is 1 hour 40 minutes. For every 15 hours of audiobooks, you save 5 hours.
How long is 2 hours at 1.5x speed?
A 2-hour video or audiobook at 1.5x speed takes 1 hour and 20 minutes. See our detailed guide: How Long is 2 Hours at 1.5x Speed?
What about 5 hours at 2x speed?
At 2x speed, 5 hours of content takes exactly 2 hours and 30 minutes — half the original time.
How long is 10 hours at 1.5x speed?
A 10-hour audiobook at 1.5x speed takes approximately 6 hours and 40 minutes. You save 3 hours and 20 minutes.
Conclusion
A 5-hour audiobook or video at 1.5x speed takes 3 hours and 20 minutes. You save 1 hour and 40 minutes — a full third of your listening time.
For any custom duration or speed, bookmark the Playback Speed Calculator or Audiobook Speed Calculator for instant results.