Reading time

How long does it take to read Relentless?

Relentless by Mark Greaney is about 528 pages, so it takes about 9½ hours at an average 238 words per minute — about 19 days at 30 minutes a day.

At an average reading speed

9 h 15 min

Relentless · Mark Greaney · first published 2021

Pages
528
30 min a day
19 days

By reading speed

Unhurried reader · 180 wpm12 h 13 min
Average adult · 238 wpm9 h 15 min
Quick reader · 300 wpm7 h 20 min
Very fast reader · 400 wpm5 h 30 min

By daily habit

Your reading speed

15 minutes a day37 days
30 minutes a day19 days
45 minutes a day13 days
60 minutes a day10 days

Page count: median of 5 editions on Open Library. Times assume about 250 words per page. How we calculate.

#10 in The Gray Man

Next in the series: Sierra Six (2022, 528 pages)

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.

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The Now screen in Bookwisp with the books in progress

Relentless: reading time questions

How many pages is Relentless?
Relentless is about 528 pages. That is the median across the 5 editions listed on Open Library; hardcover, paperback and large-print editions differ.
How long does it take to read Relentless?
About 9 h 15 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 20 min.
How many days to read Relentless at 30 minutes a day?
About 19 days. At 15 minutes a day it takes about 37 days, and at an hour a day about 10 days.
What number is Relentless in the The Gray Man series?
Relentless is book 10 in The Gray Man by Mark Greaney.

Books of about the same length