Method

The calculator treats each non-empty whitespace-separated token as one word. Estimated minutes equal word count divided by the selected words-per-minute rate. The same duration is also converted into rounded whole seconds for a more concrete minutes-and-seconds display.

Worked example

Why the speed is adjustable

There is no single reading rate that fits every person or document. Technical material, unfamiliar vocabulary, proofreading, reading aloud, and accessibility needs can all change the time required. An adjustable rate makes the arithmetic visible instead of presenting one speed as universal.

Privacy

The text and reading-speed setting are processed locally in the browser.

Limitations

This is a simple estimate, not a measurement of an individual reader. The word-count rule is whitespace based, so languages and writing systems that do not normally separate words with spaces can require a different tokenizer.

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