How many words is a 15 minute speech?

A 15 minute presentation is about 2250 words at an average speaking pace of 150 words per minute. Slow it to 130 and you get 1950 words. Push to 170 and you get 2550. The number you actually write to is smaller, because most 15 minute slots carry questions inside them. A session billed as 15 plus 5 gives you the full 2250 words, while a flat 15 minutes with Q and A included leaves about 11 minutes of speaking, which is 1650 words.

What fits in 15 minutes

This length is the short conference session and the university guest lecture.

Two thousand words supports three sections with one argument running through them, or two case studies compared side by side. A conference session fits a problem, an approach, and results, plus a slide of caveats that earns you credibility in the hallway afterward. A guest lecture fits one framework taught properly with two worked examples. Four sections at this length turn into a list, and lists are what audiences forget first.

A structure that fits

1. 1Framing, 250 to 300 words. State the problem in the words your audience already uses for it.
2. 2Approach, 500 to 600 words. What you did, and the two decisions that were genuinely hard.
3. 3Evidence, 700 to 850 words. Numbers, screenshots, or the study design. This is where a 15 minute session earns its slot.
4. 4Limits, 250 to 300 words. Where the approach breaks down. Saying it yourself shortens Q and A and raises trust.
5. 5Close and handoff, 200 to 250 words. One takeaway, plus the specific thing you want the room to try on Monday.

Before you deliver it

Rehearse the transitions on their own. A 15 minute talk falls apart in the four seconds between sections, where you glance at your slides to remember what comes next. Write the first sentence of each section on one card and practice saying those five sentences in order with nothing else. Then take two full runs, and save the last one for the day before, since a talk rehearsed to death on the day itself loses its energy.