How this instrument works
Reading speed, in words per minute (wpm), is the multiplier that turns 'minutes spent reading' into 'words actually read' — a genuinely useful number once you have it, but one most people have never measured for themselves and instead guess at, often based on outdated or overly round figures repeated across casual reading-advice pages.
This calculator's default of 238 wpm comes from a specific, credible source: Marc Brysbaert's 2019 meta-analysis in the Journal of Memory and Language, which pooled results across many independent studies of adult silent reading rates for English nonfiction. That's a meaningfully different number from the '250-300 wpm' figures that circulate informally, since it's a weighted average of real measured data rather than an assumption — the same study also found fiction reads somewhat faster on average (roughly 260 wpm), which this calculator lets you enter directly if that's a better match for what you're reading.
Pages per day is simply words per day divided by a words-per-page figure — 300 words per page is a standard publishing-industry rule of thumb for a typical novel page, though dense nonfiction, academic text or large-print editions can run noticeably higher or lower, so adjust that field if you know your specific book's actual words-per-page count runs differently.
- Enter Reading time per day (minutes) — however much time you realistically spend reading on a typical day.
- Enter Reading speed (words per minute) — the default 238 wpm is a research-backed average for English nonfiction; raise it toward 260 for fiction, or lower it for denser or unfamiliar material.
- Enter Words per page if you know your specific book's figure; 300 is a reasonable default for a typical novel-format page.
- Read Words read per day and Pages read per day for the results — use the pages figure to gut-check how a daily reading habit stacks up against a specific book's total page count.
Worked example — 30 minutes a day at the research-backed average speed
Someone reads for 30 minutes a day at the default 238 wpm reading speed, on a book averaging 300 words per page. Words per day = 30 × 238 = 7,140 words.
Pages per day = 7,140 ÷ 300 = 23.8 pages — call it about 24 pages a day from a single half-hour reading session, which stacks up to roughly 730 pages over a month, or enough to finish most novels in under two weeks at that pace.
Questions
Where does the default 238 words-per-minute figure come from?
It's the average silent-reading rate for English nonfiction found by Marc Brysbaert's 2019 meta-analysis in the Journal of Memory and Language, which statistically pooled results across many independent published reading-speed studies rather than relying on any single small sample. It's noticeably more conservative than the 250-300 wpm figures common on casual reading-advice sites, precisely because it's a weighted average of real measured data.
Should I use a different speed for fiction versus nonfiction?
The same 2019 meta-analysis found fiction reads somewhat faster on average — around 260 wpm versus 238 wpm for nonfiction — likely because fiction's simpler, more familiar sentence structures and vocabulary let readers move through it more quickly. Enter 260 (or your own measured rate) if you're mostly tracking fiction reading.
How do I find my own actual reading speed instead of using the default?
Time yourself reading a page or two of typical material, count the words on those pages (or estimate from the words-per-page figure), and divide words read by minutes spent — a few timed samples averaged together will give a far more personal and accurate rate than any published average, since individual reading speed varies substantially from person to person.
Why does words-per-page matter so much for the pages-per-day figure?
Because it's a direct divisor — a dense academic text at 400 words per page will show noticeably fewer 'pages read' for the same word count than a large-type novel at 250 words per page, even though the reader consumed the identical number of words either way. If pages read (rather than words read) is what you're actually trying to track, matching this field to your specific book matters more than the reading-speed figure does.
Does reading speed change depending on how difficult or unfamiliar the material is?
Yes, substantially — technical, unfamiliar, or foreign-language material typically reads much slower than comfortable, familiar prose, which is exactly why this calculator lets you override the default speed rather than locking it in. If you're tackling something denser than usual, lowering the wpm figure will give a more realistic daily-pages estimate.