Reading Time Calculator
Whether you are planning how long to spend on a textbook chapter, estimating reading time for an article, or scheduling study sessions for an entire book, this reading time calculator gives you an accurate estimate based on your personal reading speed. Enter either the total word count of the text or the number of pages (the calculator converts pages to words using the standard 250 words per page assumption), then set your reading speed in words per minute. The average adult reads approximately 238 to 250 words per minute for non-fiction text, which is the default. You can adjust this up for light reading or down for dense academic text. The calculator outputs your estimated reading time in minutes and hours, and at three different reading speeds (slow, average, and fast) so you can plan for different scenarios. Results are reading time only; factor in additional time for note-taking, re-reading difficult passages, and discussion or writing based on the text.
Estimated reading time: -- minutes (-- hours)
How reading time is calculated
Reading time (min) = Word count / Reading speed (wpm)
Words from pages = Pages x 250
Worked example
A 20-page textbook chapter at 250 wpm:
- Words = 20 x 250 = 5,000 words
- Reading time = 5,000 / 250 = 20.00 minutes
- At slow pace (200 wpm): 5,000 / 200 = 25.00 minutes
- At fast pace (400 wpm): 5,000 / 400 = 12.50 minutes
Frequently asked questions
What is the average reading speed for adults?
Research published by Rayner et al. (2016) in Psychological Science in the Public Interest found the average adult reads approximately 238 words per minute for non-fiction text. College students average around 250 to 300 wpm for academic reading. Speed readers and trained professionals may read 400 to 700 wpm, though comprehension typically decreases above 500 wpm.
How many words are on an average textbook page?
A standard double-spaced, 12-point font academic page contains approximately 250 words. Textbook pages typically contain 250 to 400 words, depending on page size, font size, and the amount of graphics or diagrams. This calculator uses 250 words per page as the default, which aligns with the standard manuscript page format.
Why does my reading speed vary by text type?
Reading speed varies because comprehension demands differ. Dense technical or academic text, unfamiliar vocabulary, and complex sentence structures slow reading. Narrative fiction and casual non-fiction are generally read faster. For academic assignments that require deep comprehension and note-taking, your effective reading speed may be significantly lower than your normal reading speed.
How can I read faster without losing comprehension?
Effective techniques include previewing headings and summaries before reading, reading in thought units (phrases) rather than word by word, minimizing subvocalization (silently pronouncing words), and using a pointer or finger to pace your eyes. Practice and familiarity with a subject matter also increase speed significantly.
How long does it take to read a 300-page book?
At an average reading speed of 250 words per minute and 250 words per page, a 300-page book contains approximately 75,000 words. At 250 wpm, reading time is 75,000 / 250 = 300 minutes (5 hours of pure reading time). Add time for pauses, re-reading, and note-taking for academic texts.
Sources
- Rayner et al. (2016). So much to read, so little time: How do we read, and can speed reading help? Psychological Science in the Public Interest, 17(1), 4-34. Published by Association for Psychological Science: doi:10.1177/1529100615623267.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026.