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Radcliffe, Ann Ward · d. 1823 · measured edition

The Mysteries of Udolpho

19h 28mof reading at 250 wpm

The Mysteries of Udolpho by Radcliffe, Ann Ward runs to 292,066 words — about 19h 28m of reading at an average adult pace of 250 words per minute, or roughly 1,062 pages at typical paperback density.

Extent 292,066 words · 10,573 distinct forms · 8,549 sentences · F–K grade 14.7

SOURCE·Project Gutenberg full texts·computed from the full text·REVIEWED JUL 2026

Extent — 1,062 pages against 19h 28m of reading

Above the rule one mark per reading hour at 250 wpmBelow a folio every 50 pages at 275 words to the page

SOURCE·Project Gutenberg full texts·counted from the text, not a publisher's page count·REVIEWED JUL 2026

Words292,066longer than 94% of books here
Reading time19h 28mat 250 wpm
Reading level14.7Flesch–Kincaid grade
Chapters1142,562 words each

How this is worked out

  1. The Project Gutenberg plain-text edition is fetched, then Gutenberg's header and licence footer are struck at the *** START *** and *** END *** markers. Nothing is taken from a publisher's listing.
  2. What remains is counted as that edition sets it: 292,066 words, 8,549 sentences, syllables by vowel-group heuristic.
  3. Words are divided by a stated reading rate. This page's headline uses 250 words a minute; a duration printed without its rate cannot be checked, so the rate travels with every figure and the table below runs 150–450 wpm.
  4. Minutes are rounded once, to the nearest minute, and set as h:mm. Nothing on this page is rounded twice.
  5. The page extent is a courtesy conversion at 275 words to the page — a typesetting figure, not a property of the book.
words ÷ rate            = minutes
292,066 ÷ 250 wpm   = 1168 min   → 19h 28m
words ÷ density         = extent
292,066 ÷ 275 w/pp  = 1,062 pages

The method in full, including why your count may differ →

How long it takes to read, by reading speed

Most adults read prose at 200–300 words per minute. Reading speed varies far more between people than most reading-time estimates admit, so here is the whole range.

Reading speedTotal timeAt 30 min/dayAt 1 hour/day
Slow / careful (150 wpm) 32h 27m65 days33 days
Below average (200 wpm) 24h 20m49 days25 days
Average adult (250 wpm) 19h 28m39 days20 days
Fast (300 wpm) 16h 14m33 days17 days
Very fast (450 wpm) 10h 49m22 days11 days

The full measurement

Total words292,066
Unique words10,573
Lexical diversity3.62% unique words as a share of total
Sentences8,549
Average sentence length34.2 words
Average syllables per word1.43
Long words (3+ syllables)10.7%
Chapters detected114 — averaging 2,562 words
Flesch–Kincaid grade14.7
Flesch reading ease50.8 higher is easier; 60–70 is plain English
Gunning fog index18
Coleman–Liau index10

Computed from the Project Gutenberg plain-text edition with the Gutenberg header and licence footer removed. See how and why your count may differ.

SOURCE·Project Gutenberg full texts·ebook no. 3268·REVIEWED JUL 2026

Reading it in evenings

The same 292,066 words, divided by the habit rather than by the hour — and then a rate of your own, if 250 wpm is not yours.

10 min a day 117 days
20 min a day 59 days
30 min a day 39 days
60 min a day 20 days
Worked from the text: 292,066 words ÷ 250 words per minute = 1168 minutes of reading, divided by the daily habit and rounded up to whole days.

SOURCE·Project Gutenberg full texts·reading rate stated: 250 wpm·REVIEWED JUL 2026

Average adult prose speed is 200–300 wpm. Not sure? Time yourself on one page.

Is it a hard read?

Four different readability formulas agree it is difficult — college level: Flesch–Kincaid puts it at grade 14.7, Gunning fog at 18, Coleman–Liau at 10. The Flesch reading-ease score of 50.8 is fairly typical of adult fiction.

The mechanics behind that: sentences average 34.2 words (modern prose tends to run 15–20), and 10.7% of words are three syllables or longer. Its vocabulary is fairly repetitive — 10,573 distinct words, or 3.62% of the total.

A caution about all of this: readability formulas measure sentence and word length, nothing more. They cannot see irony, dialect, allusion or an unreliable narrator. A book can score as "easy" and still be genuinely difficult to follow.

The second question

What people ask once the duration is on the table.

How many words are in The Mysteries of Udolpho?

292,066 words in the Project Gutenberg edition, made up of 10,573 distinct words across 8,549 sentences. That is longer than 94% of the books measured on this site.

How long does it take to read The Mysteries of Udolpho?

About 19h 28m at an average adult reading speed of 250 words per minute. A slower reader at 150 wpm would need roughly 32h 27m; a fast reader at 400 wpm about 12h 10m.

What reading level is The Mysteries of Udolpho?

It scores 14.7 on the Flesch–Kincaid grade scale — difficult — college level. Its Flesch reading-ease score is 50.8, sentences average 34.2 words, and 10.7% of its words run to three syllables or more.

How many pages is The Mysteries of Udolpho?

Page counts depend entirely on the edition — font, trim size and margins all change them, which is why this site measures words instead. At a typical trade-paperback density of about 275 words per page, 292,066 words works out to roughly 1,062 pages.

Colophon

Measured from the Project Gutenberg plain-text edition, ebook no. 3268, with Gutenberg’s header and licence footer struck before counting. 292,066 words, 8,549 sentences, 10,573 distinct forms. No text of the work is set anywhere on this site — only measurements of it.

The extent of 1,062 pages is a conversion at 275 words to the page, not this edition’s foliation: a page count belongs to a typesetting, never to a book. Reading time assumes 250 words a minute and is stated with its rate everywhere it appears.

SOURCE·Project Gutenberg ebook no. 3268·US public domain·REVIEWED JUL 2026

Word counts and reading levels are computed from a specific public-domain edition and will differ from other editions and from other counting methods — see the method page.

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