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Reading time calculator
Put your pages, words per page, reading speed and minutes per day in: 300 pages at 250 words a page is 75000 words, 375 minutes at 200 words a minute, 6.25 hours, 13 days at 30 minutes a day.
★ EVERYDAY · BOOKS · READING
Reading Time Calculator: 6.25 Hours, 13 Days for 300 Pages
On the defaults — 300 pages, 250 words a page, 200 words a minute, 30 minutes a day — you need 6.25 hours, spread over 13 days. This is the reading time tool: count the words once, time your speed once, and plan the book honestly — a book planned in hours finishes, and a book planned in hope does not.
What does reading time needed 6.25 hours, 13 days mean?
It means a 300-page book at 250 words a page holds 75000 words, which takes 375 minutes — 6.25 hours — at 200 words a minute, and 13 days at 30 minutes a day, since 12.5 days exact rounds up to a whole day. The hours are the book itself, fixed by the words and the speed, while the days are the plan: the same book at 60 minutes a day still takes 6.25 hours, but finishes in 7 days instead of 13. The exact days figure is the planning number between the two — 12.5 days means half a reading session on the last day, and the rounded 13 days is the calendar answer.
Output · formula · meaning
| Output | Formula | What it means |
|---|---|---|
| Words | pages × words per page | 75000 words — 300 × 250. |
| Minutes | words ÷ speed | 375 minutes — 75000 ÷ 200. |
| Hours | minutes ÷ 60 | 6.25 hours — 375 ÷ 60. |
| Days | minutes ÷ minutes per day, rounded up | 13 days — 375 ÷ 30, rounded up. |
Three things to check before you trust the number
First, sample the words per page honestly: count the words on three full pages and average them, since a dense history book at 350 words a page takes far longer than a large-print novel at 180. Second, time your real reading speed, not your hoped-for speed: read for ten minutes with a timer and count the pages, since a speed guessed 50 words high under-counts the book by a quarter. Third, remember the days assume every day counts: a plan of 30 minutes a day that skips weekends takes 13 reading days, not 13 calendar days. For the listening version of the same book, the road trip fuel calculator prices the drive you could listen through.
Worked example
300 pages, 250 words a page, 200 words a minute, 30 minutes a day. Words: 300 × 250 = 75000. Minutes: 75000 ÷ 200 = 375. Hours: 375 ÷ 60 = 6.25. Days exact: 375 ÷ 30 = 12.5, rounded up to 13 days. In practice that means about six and a quarter hours of reading spread over thirteen half-hour sessions — a fortnight of evening reading, with the last session only half full.
Every branch, checked
With 400 pages instead of 300, the words rise to 100000 and the time to 8.33 hours, 17 days. With 300 words a page instead of 250, the words rise to 90000 and the time to 7.5 hours, 15 days. With 300 words a minute instead of 200, the words stay 75000 but the time falls to 4.17 hours, 9 days, since speed moves the minutes most. With 60 minutes a day instead of 30, the hours stay 6.25 but the days fall to 7, since minutes per day move only the calendar. Pages, words per page, speed and minutes per day each move the book on their own, so a wrong words-per-page figure is as costly as a wrong speed.
The reverses, worked backwards
The pages behind 6.25 hours are 300: at 200 pages the time is 4.17 hours, 9 days (200 pages, 250 words a page, 50000 words, 200 words a minute, 250 minutes, 30 minutes a day, 8.33 days exact); at 400 pages it is 8.33 hours, 17 days (400 pages, 250 words a page, 100000 words, 200 words a minute, 500 minutes, 30 minutes a day, 16.67 days exact). The speed behind 6.25 hours is 200 words a minute: at 150 words a minute the time is 8.33 hours, 17 days (300 pages, 250 words a page, 75000 words, 150 words a minute, 500 minutes, 30 minutes a day, 16.67 days exact); at 300 words a minute it is 4.17 hours, 9 days (300 pages, 250 words a page, 75000 words, 300 words a minute, 250 minutes, 30 minutes a day, 8.33 days exact). The minutes per day behind 13 days are 30: at 15 minutes a day the time is 6.25 hours, 25 days (300 pages, 250 words a page, 75000 words, 200 words a minute, 375 minutes, 15 minutes a day, 25 days exact); at 60 minutes a day it is 6.25 hours, 7 days (300 pages, 250 words a page, 75000 words, 200 words a minute, 375 minutes, 60 minutes a day, 6.25 days exact). Each reverse moves one input and holds the rest, so the step is exactly one page, speed or daily-minute change.
What the defaults assume
The defaults assume a 300-page paperback, 250 words a page, a 200-word-a-minute reading speed, and 30 minutes of reading every day. They do not assume re-reading, note-taking, diagrams, or days skipped — a textbook read with notes takes longer than its word count suggests, and a plan that skips weekends takes more calendar days than reading days.
Who uses this
- A reader starting a book club book: the 13-day plan settles whether the book fits before the meeting.
- A student facing a reading list: the hours per book, added up, give the term workload in one number.
- A commuter choosing an audiobook-length read: the hours figure compares directly with the hours on the road.
- A parent setting a child reading routine: the same maths on a shorter book gives the days for a nightly habit.
Accuracy & limitations
The arithmetic is exact for the inputs entered; the judgement is the words per page and the speed. Real books vary — dialogue pages hold fewer words than description pages, and a tired reader slows — and the timer overrides any planning figure; a speed measured on easy fiction over-states a dense textbook by a wide margin. Treat 6.25 hours as the planning time for a 300-page book at 250 words a page and 200 words a minute, and re-time your speed on the book itself after the first chapter.
Cite this calculator
Bright Side Kit, “Reading Time Calculator: 6.25 Hours, 13 Days for 300 Pages”, https://brightoolbox.com/reading-time-calculator/, accessed 3 November 2026. Students and researchers: cite the calculator name, the page URL and the date you used it, and quote the defaults (300 pages, 250 words a page, 200 words a minute, 30 minutes a day) so the 6.25-hour result can be checked.
Frequently asked questions
How long does it take to read 300 pages?
6.25 hours at 250 words a page and 200 words a minute — 75000 words, 375 minutes — or 13 days at 30 minutes a day.
How do I work out reading time from a page count?
Multiply pages by words per page for words, divide by words a minute for minutes, divide by 60 for hours, then divide by minutes per day and round up for days. A 300-page book at 250 words a page and 200 words a minute is 6.25 hours, 13 days.
How many words are on a typical book page?
About 250 on a paperback page, but it varies widely: large print can be 180, dense non-fiction 350 or more. Count three full pages and average them for your book.
What is an average reading speed?
About 200 words a minute for an adult reading for pleasure. At 150 words a minute the same 300-page book takes 8.33 hours; at 300 words a minute it takes 4.17 hours.
Does reading longer each day change the hours?
No — minutes per day change only the days. The book still takes 6.25 hours whether you read 30 or 60 minutes a day; only the calendar moves, from 13 days to 7.
Why round the days up?
Because a book finishes on a whole day, not a fraction of one: 12.5 days exact means twelve full sessions plus one half session, which is the thirteenth day. The exact figure is shown so the last day size is visible.