Reading time

How long does it take to read Mostly Harmless?

Mostly Harmless by Douglas Adams is about 259 pages, so it takes about 4½ hours at an average 238 words per minute — about 10 days at 30 minutes a day.

At an average reading speed

4 h 32 min

Mostly Harmless · Douglas Adams · first published 1992

Pages
259
30 min a day
10 days

By reading speed

Unhurried reader · 180 wpm6 h
Average adult · 238 wpm4 h 32 min
Quick reader · 300 wpm3 h 36 min
Very fast reader · 400 wpm2 h 42 min

By daily habit

Your reading speed

15 minutes a day19 days
30 minutes a day10 days
45 minutes a day7 days
60 minutes a day5 days

Page count: median of 53 editions on Open Library. Times assume about 250 words per page. How we calculate.

#5 in The Hitchhiker's Guide to the Galaxy

Next in the series: And Another Thing... (2009, 336 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.

The Now screen in Bookwisp with the books in progress

Mostly Harmless: reading time questions

How many pages is Mostly Harmless?
Mostly Harmless is about 259 pages. That is the median across the 53 editions listed on Open Library; hardcover, paperback and large-print editions differ.
How long does it take to read Mostly Harmless?
About 4 h 32 min at 238 words per minute, the average silent reading speed for adults. A quick reader at 300 words per minute needs about 3 h 36 min.
How many days to read Mostly Harmless at 30 minutes a day?
About 10 days. At 15 minutes a day it takes about 19 days, and at an hour a day about 5 days.
What number is Mostly Harmless in the The Hitchhiker's Guide to the Galaxy series?
Mostly Harmless is book 5 in The Hitchhiker's Guide to the Galaxy by Douglas Adams.

Books of about the same length