What is 15% of 20?

To find 15% of 20, multiply 20 by 15 and divide by 100. 20 × 15 ÷ 100 = 3.

Need a different percentage? Use the free percentage calculator.

Another way to look at it

Turn it around: 20% of 15 is also 3. That's not a coincidence — percentages work both ways, so swapping the two numbers always gives you the same answer.

Nearby round percentages

For context, here is how 15% of 20 compares to nearby round percentages.

As a test score

If this were a test out of 20 marks, scoring 3 would be a 15% result — below the typical pass mark in most grading systems. Grade boundaries vary by exam board and institution, so treat this as a rough guide rather than an official conversion.

Quick example

If a £20 restaurant bill had a 15% tip added, the tip would be £3.

Other percentages of 20

Frequently asked questions

Is 15% of 20 more or less than half?

3 is less than half of 20 — half of 20 is 10.

What's the difference between 15% of 20 and 15% off 20?

15% of 20 is the portion itself: 3. 15% off 20 means removing that portion from the total, leaving 17. The two figures add back up to 20.

How do I work out 15% of 20 without a calculator?

Multiply 20 by 15 and divide by 100. A quick shortcut: find 10% of 20 first (2), then scale that up or down to build 15%.