What this calculator does
Find out how long your speech will take, or how many words you can fit into your time slot. Talks, toasts, podcasts, video voice-overs and conference slots almost always come with a time limit. Most of us write the words before we say them. So the real question is how long a script will take to deliver. Or, how long can the script be for the minutes you have?
This calculator answers both with one number: your speaking rate in words per minute (wpm). It can also work out your own rate from a timed practice run. That's the most reliable way to plan, because comfortable speaking speeds differ quite a lot from person to person.
Where it's used
Why this math matters outside the classroom:
- Timed speeches. A 5-minute speech at 130 words per minute needs about 650 words.
- Presentations. Speakers check whether a 1,500-word script fits a 10-minute slot at their usual pace.
- Radio and video scripts. Producers trim a script until its word count fits a 30-second spot.
- Class debates. Students time a practice run and divide the word count by the minutes to find their speaking rate.
Grade level and standards: Grade 6; Common Core State Standards for Mathematics 6.RP.A.3.b. © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
How to use it
- Choose a mode: the time a script takes, the number of words that fit a time slot, or your own speaking rate.
- Enter the word count or the minutes available, and a speaking rate. If you're not sure, start with 140 words per minute.
- To measure your rate, read part of your script aloud at the pace you'll use on the day. Time it, then enter the words and the time.
- Check the 120–160 wpm range line. It shows how much the timing would change if you spoke more slowly or quickly on the day.
What the inputs mean
- Speaking rate
- Many speakers deliver prepared talks at about 130 to 150 words per minute. Slow, deliberate delivery is nearer 110. Quick, chatty speech can pass 170.
- Time available
- The minutes you'll actually be speaking. Leave out time for questions, applause, videos or demonstrations.
- Time taken: seconds
- Add the leftover seconds after the whole minutes, from 0 to 59.
Formula and method
speaking time (minutes) = word count ÷ speaking rate (wpm) words that fit = speaking rate × minutes available, rounded down speaking rate (wpm) = words spoken ÷ time taken (minutes)
Speaking rate is words per minute, so the three questions are the same rule turned around. Time and rate move in opposite directions. Speaking 10% faster shortens the talk by about 9%.
When finding how many words fit, the result is rounded down to a whole word. That way the script never runs over the slot at the rate you chose.
Pauses for emphasis, laughter and slide changes all count as speaking time. That's why a rate measured on a real practice run, with its natural pauses, predicts better than an average taken from silent reading.
Worked example
A wedding speech has 700 words and will be delivered at 140 words per minute.
- Speaking time = 700 ÷ 140 = 5 minutes.
- 5 × 60 = 300 seconds, which is exactly 5 minutes.
- At 160 wpm it would take 700 ÷ 160 = 4.375 minutes (4 min 23 s). At 120 wpm, it's 700 ÷ 120 = 5.83 minutes (5 min 50 s).
Result: The speech runs about 5 minutes. Depending on pace, it takes between roughly 4 min 23 s and 5 min 50 s.
Understanding the result
If the result is close to your limit, aim for the lower end of the range. Most people speak a little faster when nervous, but pauses and audience reactions add time.
For a fixed slot, the words-that-fit figure is the most you can use at your chosen rate. Writing 10% fewer words leaves room for pauses and off-the-cuff remarks.
A measured rate well above 170 words per minute may be hard for listeners to follow in a formal talk. Try trimming the script rather than speaking faster.
Assumptions and limitations
- The rate stays steady across the whole script.
- Every word counts the same, whatever its length.
- It doesn't count words for you. Use your editor's word count.
- Time for slides, demonstrations, video clips or audience questions isn't included.
- Rates differ between languages, so a rate measured in one language won't carry over to another.
Frequently asked questions
How many words is a 5-minute speech?
At a typical presenting pace of 130 to 150 words per minute, it's about 650 to 750 words. For a closer figure, use the words-for-a-time-slot mode with your own speaking rate.
How many words per minute is normal when speaking?
Prepared talks and presentations are often delivered at about 130 to 150 words per minute. Everyday conversation tends to be faster. Audiobooks and broadcasts are usually read at a steady pace in a similar range.
How do I measure my speaking rate?
Read at least 200 words of your script aloud, at the pace you plan to use, and time it. Enter the word count and the time in the speaking-rate mode. Doing this twice and averaging gives a steadier figure.
Why is speaking slower than reading?
Silent readers take in words without saying them, often at 200 to 300 words per minute. Speaking means saying every syllable and pausing to breathe. So it's usually about half that speed.
How this calculator is checked
Method: Rate relation: time = words ÷ words per minute; words = rate × time; rate = words ÷ time. The calculation is covered by automated tests with known reference values and edge cases. Last updated 2026-10-18. Found a problem? Tell us.
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