Speech Time Calculator - How Long Will My Speech Take?

Work out how long a speech, script or presentation will take to deliver, and how many words fit in a given time slot.

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Formula

speech time = word count ÷ speaking rate (words per minute); a working average for presentations is 150 wpm

Examples

InputResult
1,500 words at 150 wpm10 min 0 s
1,000 words at 150 wpm6 min 40 s
2,000 words at 130 wpm15 min 23 s
1,800 words at 150 wpm12 min 0 s

Words per minute for different kinds of delivery

DeliveryWords per minute
Prepared presentation, comfortable pace130-150
Conversational speech130-150
Rehearsed, brisk delivery160-170
Reading a text aloud183
Audiobook narration150-160

The 183 wpm figure for reading aloud comes from the same 2019 meta-analysis as the reading speeds (Brysbaert, Journal of Memory and Language 109:104047) and is a measured average, not a convention. The 130–150 wpm band for presentations is a coaching convention, because live delivery adds pauses, emphasis and audience response that reading aloud does not.

Why the same script takes different times

Articulation, not comprehension, is the bottleneck in speech. A 10-minute slot at 150 wpm holds 1,500 words; the same slot read at 183 wpm would hold 1,830 — a 22% difference. That is why the same script can run 8 minutes for one speaker and 11 for another.

Two practical rules. First, rehearse out loud with a timer rather than counting words — the number you get will usually be 10–20% longer than the arithmetic suggests. Second, cut words rather than speed up: audiences rate slower delivery as more confident, and rushing is the fastest way to lose a room.

Reading and speaking speeds at a glance

ActivityWords per minuteSource
Adult silent reading, non-fiction238Brysbaert (2019), 190 studies
Adult silent reading, fiction~260Brysbaert (2019)
Reading aloud183Brysbaert (2019), 77 studies
Careful / study reading of technical text~180Brysbaert (2019), difficulty effect
Prepared speech with pauses130-150Public-speaking convention
Audiobook narration150-160ACX narrator guidelines (~155 wpm)
Fast reader~350Upper end of the normal distribution
Skimming / scanning450+Not reading for comprehension

Speeds above about 400 wpm in normal adults mean scanning, not reading. The 2019 meta-analysis found no evidence for distinct "reading gears" — the only real distinction is between reading (comprehending most of the text) and scanning for a specific piece of information.

Frequently Asked Questions

How many words is a 10-minute speech?

About 1,500 words at a comfortable 150 words per minute, or 1,300 words if you deliver slowly at 130 wpm. Add 10–20% for pauses if the format allows questions or laughs.

What is a good speaking rate for a presentation?

Between 130 and 150 words per minute. Faster than 170 wpm is hard for an audience to follow in a live room; slower than 120 feels laboured unless it is deliberate.

How do I know if my speech is too long?

Read it aloud with a timer — do not estimate from the word count alone. Live delivery typically runs 10–20% longer than the arithmetic, because of pauses, emphasis and reaction.

How many words per minute do audiobook narrators use?

About 150–160 wpm. ACX, the main audiobook production platform, targets roughly 9,300 finished words per hour, which is about 155 wpm.

Is 200 words per minute too fast for a speech?

For a live presentation, yes — 200 wpm is well above the 130–150 band and closer to reading speed than speaking speed. It is fine for a recorded voiceover where the listener can rewind.

Related Calculators

Reading Time CalculatorWords to Minutes CalculatorWords Per Minute Calculator - Test Your Reading Speed