Reading speed calculator
Set your own reading speed and see how long a piece of text takes at that pace, not the default 238.
Average adult: 238 WPM
Paste text or enter a word count to see the estimate.
How the adjustable reading speed estimate works
This tool divides your word count by a custom reading speed to estimate how long a text takes to finish. Unlike calculators that rely on fixed baseline speeds, this tool uses a slider from 100 to 600 WPM. Input a previously measured reading speed, paste your text, and it outputs the time instantly. The calculation is a straight mathematical division, recalculating locally in your browser whenever you adjust the slider.
What the reading speed slider does not account for
- The slider applies a single flat rate across the entire text. In reality, your reading speed fluctuates based on text density, formatting, and your familiarity with the topic.
- The tool counts words without evaluating difficulty. Technical passages may take longer to understand than familiar prose of the same length; the formula treats every word equally.
- If you do not know your actual measured reading speed, the selected slider value is purely a guess, meaning the final output time is also a guess.
Reading speed calculator questions
How do I find out my own reading speed?
Use a words-per-minute calculator to time yourself on a sample passage. Test yourself on a few different texts and average them out, as your pace will vary with the difficulty of the material.
What is the difference between this and the reading time calculator?
The reading time calculator runs text against three fixed tiers (150, 238, and 350 WPM). This adjustable calculator lets you specify an exact rate for a custom estimate based purely on your measured pace.
Why does the slider stop at 600 WPM?
100 to 600 WPM is the range this slider accepts. It is a tool setting, not a recommended target or a claim that comprehension is preserved at the upper end. Use a pace measured on comparable text.
Does text format affect actual reading speed?
Yes. Screen size, line spacing, and paragraph density all impact how quickly you navigate a document. A basic division formula cannot model these external formatting variables.
