Reading time

How long does it take to read Onyx Storm?

Onyx Storm by Rebecca Yarros is about 544 pages, so it takes about 9½ hours at an average 238 words per minute — about 20 days at 30 minutes a day.

At an average reading speed

9 h 31 min

Onyx Storm · Rebecca Yarros · first published 2025

Pages
544
30 min a day
20 days

By reading speed

Unhurried reader · 180 wpm12 h 36 min
Average adult · 238 wpm9 h 31 min
Quick reader · 300 wpm7 h 33 min
Very fast reader · 400 wpm5 h 40 min

By daily habit

Your reading speed

15 minutes a day39 days
30 minutes a day20 days
45 minutes a day13 days
60 minutes a day10 days

Page count: median of 13 editions on Open Library. Times assume about 250 words per page. How we calculate.

#3 in The Empyrean

Your real reading speed

Time your sessions and Bookwisp learns how fast you actually read.

Start the timer when you open the book; it keeps running on your Lock Screen. Stop it, note your page, and your weekly minutes and streak update.

Free on theApp StoreFree onGoogle Play
The Now screen in Bookwisp with the books in progress

Onyx Storm: reading time questions

How many pages is Onyx Storm?
Onyx Storm is about 544 pages. That is the median across the 13 editions listed on Open Library; hardcover, paperback and large-print editions differ.
How long does it take to read Onyx Storm?
About 9 h 31 min at 238 words per minute, the average silent reading speed for adults. A quick reader at 300 words per minute needs about 7 h 33 min.
How many days to read Onyx Storm at 30 minutes a day?
About 20 days. At 15 minutes a day it takes about 39 days, and at an hour a day about 10 days.
What number is Onyx Storm in the The Empyrean series?
Onyx Storm is book 3 in The Empyrean by Rebecca Yarros.

Books of about the same length