What reading speed does Utilumo use?

Utilumo estimates reading time at 225 words per minute, a common middle value for adult silent reading of prose.

Why does my estimate feel too fast or too slow?

Reading speed depends on the reader and the material. Dense or technical text reads slower than casual prose, so a single average will not match everyone.

Does the reading-time tool upload my text?

No. The estimate is calculated in your browser tab and your text is never uploaded.

Explainer1 min readUpdated June 25, 2026

How is reading time calculated?

Short answer

Reading time is estimated by dividing the number of words by an average reading speed, usually around 200 to 250 words per minute. A 1,000-word article at 225 words per minute takes a little over four minutes.

The formula

Reading time is just word count divided by reading speed: minutes = words / words-per-minute. The only judgment call is which average speed to use.

1,000 words / 225 wpm = 4.4 minutes  ->  about 5 min read

Example

What speed to assume

Studies of adult silent reading of English prose tend to cluster around 200 to 250 words per minute. Utilumo uses 225 words per minute as a middle-of-the-road default. Technical material with code or formulas reads more slowly, so estimates for documentation tend to run long.

It is an estimate, not a stopwatchReading speed varies widely by reader, topic, and language. Treat the number as a rough signal of length, not a precise measurement.

Try it: Reading TimePaste text to get an instant reading-time estimate along with word and sentence counts.Open tool