Audiobook length / The Empyrean
Iron Flame audiobook length
The unabridged Iron Flame audiobook by Rebecca Yarros is 28 hours 16 minutes long, read by Rebecca Soler and Teddy Hamilton. It is book 2 of 3 in The Empyrean.
Length at 1x
28h 16m
28:16:57, unabridged
At 1.5x
18h 51m
saves 9h 25m
At 2x
14h 08m
half the time
| Speed | Listening time | Time saved | Days at 1 hour a day |
|---|---|---|---|
| 1x | 28h 16m | - | 29 |
| 1.25x | 22h 37m | 5h 39m | 23 |
| 1.5x | 18h 51m | 9h 25m | 19 |
| 1.75x | 16h 09m | 12h 07m | 17 |
| 2x | 14h 08m | 14h 08m | 15 |
| 2.5x | 11h 18m | 16h 58m | 12 |
| 3x | 9h 25m | 18h 51m | 10 |
When will I finish?
At 1.5x and 45 minutes a day you finish in 26 days.
Length from the Apple Books listing for this edition, checked 3 October 2026. Other stores sell the same recording at the same length.
How many days to listen to Iron Flame
Days needed to finish the 28 hours 16 minutes recording, by how long you listen each day.
| Each day | 1x | 1.25x | 1.5x | 2x |
|---|---|---|---|---|
| 15 minutes | 114 days | 91 days | 76 days | 57 days |
| 30 minutes | 57 days | 46 days | 38 days | 29 days |
| 1 hour | 29 days | 23 days | 19 days | 15 days |
| 1.5 hours | 19 days | 16 days | 13 days | 10 days |
| 2 hours | 15 days | 12 days | 10 days | 8 days |
How long does it take to read Iron Flame?
Reading the book yourself takes about 17 hours 32 minutes at an average adult reading speed of 250 words a minute. Iron Flame is roughly 263,000 words, estimated from the audiobook at a narration pace of 155 words a minute, and print editions run about 640 pages (the middle value across 14 editions listed on Open Library).
| Reading speed | Time to read | At 1 hour a day |
|---|---|---|
| Relaxed (200 words a minute) | 21h 55m | 22 days |
| Average adult (250 words a minute) | 17h 32m | 18 days |
| Fast (300 words a minute) | 14h 36m | 15 days |
| Very fast (400 words a minute) | 10h 57m | 11 days |
Your speed: words a minute = 17h 32m. Reading is 38% faster than listening at 1x, and about the same as listening at 1.6x.
For any other book, page count or text, use the reading time calculator.
The Empyrean audiobook lengths
| # | Book | Length | At 1.5x |
|---|---|---|---|
| 1 | Fourth Wing | 22h 02m | 14h 41m |
| 2 | Iron Flame | 28h 16m | 18h 51m |
| 3 | Onyx Storm | 23h 52m | 15h 55m |
The whole series takes 74 hours 12 minutes. See The Empyrean audiobook length page for totals at every speed.
Listening faster
Most listeners are comfortable between 1.25x and 1.5x, which turns 28h 16m into 22h 37m to 18h 51m. If Rebecca Soler and Teddy Hamilton’s pace feels slow, raise the speed by 0.1x every few days. For any other book, type its length into the audiobook speed calculator.
Questions
How long is the Iron Flame audiobook?
The unabridged Iron Flame audiobook read by Rebecca Soler and Teddy Hamilton is 28 hours 16 minutes long (28:16:57).
How long is Iron Flame at 1.5x speed?
18 hours 51 minutes at 1.5x, 22 hours 37 minutes at 1.25x and 14 hours 8 minutes at 2x.
Who narrates the Iron Flame audiobook?
Rebecca Soler and Teddy Hamilton, for Recorded Books.
How long does it take to read Iron Flame?
About 17 hours 32 minutes at an average reading speed of 250 words a minute, for roughly 263,000 words (print editions run about 640 pages). A fast reader at 300 words a minute needs about 14 hours 36 minutes.
How many days does it take to listen to Iron Flame?
At an hour a day it takes 29 days at normal speed, or 19 days at 1.5x. At 30 minutes a day it takes 57 days, or 38 days at 1.5x.
How long is the whole Empyrean series on audiobook?
All 3 books add up to 74 hours 12 minutes. See the full list on The Empyrean audiobook length page.
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