What is 20% of 80?

To find 20% of 80, multiply 80 by 20 and divide by 100. 80 × 20 ÷ 100 = 16.

Need a different percentage? Use the free percentage calculator.

Another way to look at it

Turn it around: 80% of 20 is also 16. 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 20% of 80 compares to nearby round percentages.

As a test score

If this were a test out of 80 marks, scoring 16 would be a 20% 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

A 20% discount on a £80 item saves you £16.

Other percentages of 80

Frequently asked questions

Is 20% of 80 more or less than half?

16 is less than half of 80 — half of 80 is 40.

What's the difference between 20% of 80 and 20% off 80?

20% of 80 is the portion itself: 16. 20% off 80 means removing that portion from the total, leaving 64. The two figures add back up to 80.

How do I work out 20% of 80 without a calculator?

Multiply 80 by 20 and divide by 100. A quick shortcut: find 10% of 80 first (8), then scale that up or down to build 20%.