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Book · by Randall Munroe

How many pages is What If??

What If? by Randall Munroe has a median of 313 pages across 6 English-language print editions with a recorded page count; the middle half of editions run 304 to 320 pages.

Median pages
313
6 editions counted
Range
303–336
shortest to longest edition
Reading time
6.0h
at 238 wpm (non-fiction average)
Words (est.)
86k
at 275 words per page

How long will What If? take you?

Starts at the non-fiction average of 238 words per minute and 275 words per page. Move the slider to your own speed.

Reading time
6 h 02 min
At 30 min a day
13 days
At 1 hour a day
7 days

Page count of every edition, by year

Each dot is one English-language print edition. Shaded: middle half of editions. Line: median.

3003203402014201620182020202220242014: 336 pages2014: 303 pages2014: 320 pages2015: 304 pages2018: 320 pages2024: 306 pagesmedian 313
300320340201520202014: 336 pages2014: 303 pages2014: 320 pages2015: 304 pages2018: 320 pages2024: 306 pagesmedian 313
Open Library edition records (2026-09-30 dump).

Editions counted

The 6 editions behind the figures above, newest first. Open Library lists 37 editions of this work in all languages and formats.

YearPublisherFormatPagesOpen Library
2024Hodder & Stoughton–306OL51811347M
2018VIVATpaperback320OL44567676M
2015H&SPaperback304OL28375725M
2014Hodder & Stoughton–336OL29233221M
2014Houghton Mifflin Harcourt–303OL26327044M
2014Houghton Mifflin Harcourt Publishing Company–320OL29693527M

Questions

How many pages is What If??
About 313 pages: that is the median of 6 English-language print editions on Open Library. Editions range from 303 to 336 pages.
How long does it take to read What If??
About 6 h 02 min at 238 words per minute, assuming 275 words per page. At 30 minutes a day that is 13 days.
How many words is What If??
Roughly 86,000 words, estimated from the median page count at 275 words per page. Open Library does not record word counts, so this is an estimate.

Data: Open Library monthly data dumps (works, editions, authors, reading log, ratings) (Open Library / Internet Archive); How many words do we read per minute? A review and meta-analysis of reading rate (Marc Brysbaert, Journal of Memory and Language 109 (2019)).