Reading Time Calculator
Reading time is the whitespace-delimited word count divided by a positive speed in words per minute. Zero words shows 0 min; a positive duration below one minute shows < 1 min; longer durations round up to whole minutes. Paste 1,000 words here at the default 200 WPM and the tool returns 5 min; switch to the Fast preset (250) and the same text becomes 4 min. The panel below also shows 8 min of speaking time at 130 WPM and 25 min of typing at 40 WPM.
Text workspace
Estimate how long a text may take to read from its word count and a stated reading speed.
Method and limits
For W counted words and a positive speed v in words per minute, the estimate is W/v minutes. Display rounding is a convention, so a rounded duration is not a measurement of an individual reader.
Words are separated by whitespace; characters count Unicode code points. Speed is a positive finite number. W/v gives minutes: zero stays zero, positive fractions below one show < 1 min, other durations round up to whole minutes before hours. Equivalents use fixed references, not platform limits. English readability estimates only. A translated interface does not calibrate other languages. Non-Latin input keeps its counts but has no readability score. Short texts and estimated syllables limit accuracy; scores do not measure understanding.
English readability estimates only. A translated interface does not calibrate other languages. Non-Latin input keeps its counts but has no readability score. Short texts and estimated syllables limit accuracy; scores do not measure understanding.
Flesch = 206.835 − 1.015(W/S) − 84.6(Y/W); Flesch–Kincaid = 0.39(W/S) + 11.8(Y/W) − 15.59; Fog = 0.4[W/S + 100(P/W)]; Coleman–Liau = 0.0588(100L/W) − 0.296(100S/W) − 15.8.
W: words; S: sentences; Y: Estimated syllables; P: Complex words (3+ syllables); L: Letters.
Microsoft — Flesch / Flesch–Kincaid; Microsoft Research — Gunning Fog; Coleman–Liau
Try this example
The word cat repeated 200 times, separated by spaces. — 200 words per minute — 200 words; an estimated 1 minute.
Readability Analysis ▼
English readability estimates only. A translated interface does not calibrate other languages. Non-Latin input keeps its counts but has no readability score. Short texts and estimated syllables limit accuracy; scores do not measure understanding.
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About Reading Time Calculator
Estimate how long a text may take to read from its word count and a stated reading speed. The initial reading speed is 200 WPM; choose a preset or your own positive speed. Only the entered text contributes to the estimate; time spent on images or diagrams is not included.
The word cat repeated 200 times, separated by spaces. — 200 words per minute — 200 words; an estimated 1 minute.
Words are separated by whitespace; characters count Unicode code points. Speed is a positive finite number. W/v gives minutes: zero stays zero, positive fractions below one show < 1 min, other durations round up to whole minutes before hours. Equivalents use fixed references, not platform limits.
Use Cases
How do I calculate the reading time of a text?
Estimate how long a text may take to read from its word count and a stated reading speed.
For W counted words and a positive speed v in words per minute, the estimate is W/v minutes. Display rounding is a convention, so a rounded duration is not a measurement of an individual reader.
The word cat repeated 200 times, separated by spaces. — 200 words per minute — 200 words; an estimated 1 minute.
Pro Tips
- Words are separated by whitespace; characters count Unicode code points. Speed is a positive finite number. W/v gives minutes: zero stays zero, positive fractions below one show < 1 min, other durations round up to whole minutes before hours. Equivalents use fixed references, not platform limits. English readability estimates only. A translated interface does not calibrate other languages. Non-Latin input keeps its counts but has no readability score. Short texts and estimated syllables limit accuracy; scores do not measure understanding.
- The word cat repeated 200 times, separated by spaces. — 200 words per minute — 200 words; an estimated 1 minute.
Troubleshooting
Why is Paste unavailable or unsuccessful?
Clipboard reading may be unsupported or refused by the browser. Click in the text field and paste with Ctrl+V (Cmd+V on macOS); your text can still be entered manually.
Why does a nonempty passage count as one word?
Words are separated by whitespace, including spaces and line breaks. A passage with no whitespace counts as one token, even if it contains many characters. Characters count Unicode code points, not linguistic words. For such a passage, use the character count with your own known characters-per-minute rate instead of interpreting WPM as characters per minute.
Changing the WPM box does not shorten the estimate the way you expect.
Enter a finite speed greater than zero. An empty box, zero or an invalid value shows an error and — instead of a reading estimate; there is no automatic 200 WPM fallback. Display rounding still matters: 1,000 words at both 250 and 300 WPM show 4 min.
The Sentences tile is much higher than the number of sentences you actually wrote.
Sentences are split on every period, question mark and exclamation mark, so abbreviations count as endings: “Dr. Smith met Mr. Jones at 9 a.m. They talked.” is 10 words but reports 5 sentences. That also lowers the average sentence length and pushes the Flesch score up.
Frequently Asked Questions
The initial reading speed is 200 WPM; choose a preset or your own positive speed. Words are separated by whitespace; characters count Unicode code points. Speed is a positive finite number. W/v gives minutes: zero stays zero, positive fractions below one show < 1 min, other durations round up to whole minutes before hours. Equivalents use fixed references, not platform limits. English readability estimates only. A translated interface does not calibrate other languages. Non-Latin input keeps its counts but has no readability score. Short texts and estimated syllables limit accuracy; scores do not measure understanding.
Speaking uses 130 WPM, handwriting 13 and typing 40. These are fixed assumptions, not measured personal speeds.
Only the entered text contributes to the estimate; time spent on images or diagrams is not included.
No. Duration estimates do not measure understanding.
Words are separated by whitespace; characters count Unicode code points. Speed is a positive finite number. W/v gives minutes: zero stays zero, positive fractions below one show < 1 min, other durations round up to whole minutes before hours. Equivalents use fixed references, not platform limits.