gizmobench

Reading Time Calculator

Paste an article, a script or a chapter and see how long it takes to read, at a speed you pick rather than one the tool picked for you. Four named speeds cover a careful read at 150 words a minute, the measured adult average of 238, a confident 300 and a skim at 450, and you can type your own pace instead. Speaking time is always beside reading time, because reading aloud runs at about 150 words a minute and a script planned from the silent figure overruns. Word, sentence, paragraph and character counts and a Flesch reading ease score come with it, and nothing you paste leaves the tab.

reading time238 words a minute
0 secto read silently at 238 words a minute
0 secto read aloud at 150 words a minute
Words
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Characters
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Sentences
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Paragraphs
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Speed
Reading time
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Speaking time
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Words
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What is measured and what is chosen. Word counts are exact. Reading time is the count divided by the speed you choose, and the speed is the estimate; the 238 words a minute default is the measured adult average for silent reading. The reading-ease score uses a syllable estimate and is approximate.

Every figure

The rule each number was worked out by, so the reading time can be checked rather than believed.

  • Reading time0 words divided by 238 words a minute, to the nearest ten seconds
    0 sec
  • Speaking timeThe same words read aloud at 150 words a minute, a presentation pace
    0 sec
  • WordsSegmented by the Unicode word rules, so a hyphenated word counts once and Chinese is split into words
    0
  • SentencesSplit on . ! ? and their CJK forms, skipping titles and abbreviations
    0
  • Reading easeFlesch reading ease needs English words and at least one sentence
    Not measured

This text at every speed

The same word count divided four ways. The gap between a careful read and a skim is the reason a single number is worth so little on its own.

SpeedWords a minuteReading timeWhat it means
Slow1500 secA careful read of unfamiliar or technical material, and about the pace of speech.
Average2380 secAdult silent reading of English non-fiction, measured across 190 studies.
Fast3000 secA confident reader on familiar material.
Skim4500 secReading for the gist rather than reading every word.

Speaking is slower than reading

Reading aloud runs at about 150 words a minute against 238 for silent reading, because the mouth is the bottleneck rather than the eye. A five minute read is roughly an eight minute talk, so a script planned from the silent figure overruns by more than half. Both numbers are on the stage at once for that reason.

Nothing you paste leaves this tab. The counting and the arithmetic run in the page itself, so a manuscript, a client script or an unpublished post is only ever on your machine. There is no size limit either: the practical ceiling is your own memory. A draft of up to 50,000 characters is kept in this browser so it is still here when you come back, and Clear removes the saved copy too.

Common questions

What is the average reading speed?
238 words a minute for adult silent reading of English non-fiction. That figure comes from a 2019 review that pooled 190 separate reading studies, and it is the default here. It is lower than most people expect, and much lower than the numbers speed reading courses quote. Reading for detail or on unfamiliar technical material is closer to 150, a confident reader on familiar material is around 300, and skimming for the gist runs at 450 or more. All four are on the tool, and the same text is timed at every one of them so you can see how much the choice of speed is doing.
Why is speaking time longer than reading time?
Because the mouth is slower than the eye. Reading aloud at a presentation or narration pace runs at about 150 words a minute, against 238 for silent reading, so the same words take roughly 60 percent longer to say than to read. A piece that reads in five minutes is closer to eight minutes as a talk. That is why speaking time sits next to reading time here rather than being an extra you have to go and find: a script timed with a silent reading speed is the single most common way a talk overruns.
How is the word count worked out?
With the Unicode word-breaking rules, through the browser's own segmenter, rather than by splitting on spaces. That matters in two places. A hyphenated word such as state-of-the-art counts as one word, which is what every word counter people have used does, and a naive split would call it four. Chinese and Japanese are written without spaces, so they are segmented into words instead of being counted as one enormous word. Where a browser is too old to have the segmenter, a Unicode-aware fallback does the same job, and Chinese falls back to one word per character, which is close for Chinese and rough for Japanese.
How long does it take to read 1,000 words?
About 4 minutes 10 seconds at the 238 words a minute average, 6 minutes 40 seconds at a careful 150, 3 minutes 20 seconds at a fast 300, and around 2 minutes 10 seconds skimming at 450. Read aloud at 150 words a minute it is 6 minutes 40 seconds. Times are shown to the nearest ten seconds, because a figure like 4 minutes 12 seconds claims a precision the speed estimate cannot support.
What does the reading ease score mean?
It is the Flesch reading ease score, worked out from the average sentence length and the average number of syllables per word. 90 and above is very easy, around a fifth grade reading level; 60 to 69 is plain English at an eighth to ninth grade level; below 30 is a college graduate reading level. Short sentences and short words push the score up. The syllable count behind it is an estimate, since English syllables have no exact rule without a dictionary, so treat the score as a direction rather than a measurement. The formula is built for English, so no score is shown for text the syllable estimator cannot read.
Is my text uploaded anywhere?
No. The counting and the arithmetic run in the page itself, so a manuscript, a client script or an unpublished post never leaves your machine, and there is no size limit imposed on what you paste. A draft of up to 50,000 characters is kept in this browser's own storage so it is still there when you come back; anything longer is timed in full but not saved. Clearing the box with the Clear button clears the saved copy too.

Word counts are exact. Reading time is the count divided by the speed you choose, and the speed is the estimate; the 238 words a minute default is the measured adult average for silent reading. The reading-ease score uses a syllable estimate and is approximate.