Reading Time Calculator

Estimate how long text takes to read or speak using adjustable reading and speaking speeds.

Duration

  • Word count: 15
  • Reading time: 4 sec
  • Speaking time: 6 sec
  • Reading speed used: 225 WPM
  • Speaking speed used: 150 WPM

How to use this tool

Enter the required values in the labeled fields. Results update in your browser and are announced for assistive technologies. Use realistic measurements and verify important outcomes before acting on them.

Formula or logic

Reading time = words / reading WPM. Speaking time = words / speaking WPM. Results are rounded into minutes and seconds.

Example calculation

Example: 315 words at 225 WPM takes about 1 min 24 sec to read.

Practical use and limits

This page is built for checking, cleaning or transforming pasted text locally before publishing, sending or importing it elsewhere. The calculation is intentionally visible and described above so you can sanity-check the result instead of treating it as a black box.

Limit: browser text parsing is practical rather than legally authoritative; review sensitive copy manually. For important decisions, use this result as a planning aid and verify it against the relevant source of truth.

Last reviewed: May 29, 2026.

Reading Time Calculator: practical guide

Reading time is a promise to the reader. If the number is honest, it helps people decide whether to start now, save for later or skim for a quick answer.

The calculator is useful for blog posts, landing pages, documentation, newsletters and scripts where length affects attention.

Real examples

Short article

Input: 650 words at 225 WPM

Result: about 3 minutes

Detailed guide

Input: 2400 words at 225 WPM

Result: about 11 minutes

Practical notes

  • Technical pages often read slower than simple articles.
  • Tables, code blocks and dense lists change real reading time.
  • Use the estimate as UX guidance, not editorial truth.

Common mistakes

  • Treating all words as equal difficulty.
  • Forgetting that code and formulas slow readers down.
  • Displaying fake precision like 7 minutes 13 seconds.

Frequently asked questions

What are the defaults?

Reading defaults to 225 WPM and speaking defaults to 150 WPM.

Can I change the speed?

Yes. Both WPM values are editable.

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