The basic formula
Reading time estimates are built on one number: average silent reading speed, usually set at 200 to 250 words per minute for adult readers of general-audience English text. The calculation is simply:
reading time (minutes) = total word count ÷ words per minute
A 1,000-word article at 200 words per minute comes out to 5 minutes. At 250 words per minute, the same article is 4 minutes. Neither number is "wrong" — they're just different assumptions about reading speed, which is why you'll sometimes see the same article labeled differently on different sites.
Reading time vs. speaking time
Speaking time uses a slower rate, typically 130–150 words per minute, since spoken delivery includes natural pauses that silent reading doesn't. This matters for anyone timing a speech, a podcast script, or a video voiceover — a script that reads in 3 minutes silently will usually take closer to 4–5 minutes to actually deliver out loud.
Why reading speed varies
- Text complexity. Technical or academic writing with long sentences and unfamiliar vocabulary is read more slowly than casual prose.
- Reader familiarity. A reader fluent in a topic's jargon reads related text faster than a newcomer to that field.
- Format. Bullet points, headers, and short paragraphs are scanned faster than dense blocks of unbroken text, even at the same word count.
- Device and context. Reading on mobile, in short bursts, tends to be slower and more skimmed than focused desktop reading.
Why publishers show reading time at all
Reading time labels help readers decide, in advance, whether they have the time and attention for a piece right now — this reduces bounce rate for articles readers do commit to, since they know what they signed up for. Some content teams also use estimated reading time as a planning tool: if research shows readers on a given page tend to stay for about 3 minutes on average, writers aim to keep articles close to that length rather than padding them out.
Calculating your own reading time
Paste your draft into the WordlyCounter tool, which calculates both estimated reading time (at 200 words per minute) and speaking time (at 130 words per minute) automatically as you type, alongside your word and character counts.