How to Calculate Average Percentage: Formula, Steps & Examples
Learn how to calculate Average Percentage — the formula explained step by step, with worked examples and a free calculator to check your answer.
Average Percentage Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Average percentage
50.00%
- Count
- 3
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Average Percentage Calculator
The Average Percentage Calculator works out your average percentage, along with 1 related figure in an instant. Enter percentages (comma or space separated) and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the percentages (comma or space separated).
- Read off your average percentage, together with count — the calculator updates automatically, with no button to press.
Worked example
For example, with percentages (comma or space separated) of 20, 50, 80, the average percentage is 50.00%.
| Percentages (comma or space separated) | 20, 50, 80 |
|---|
| Average percentage | 50.00% |
|---|---|
| Count | 3 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Percentage
- A number expressed as a fraction of 100, written with the % sign.
- Mean
- The average of a set of numbers — their sum divided by how many there are.
Frequently asked questions
When each percentage is based on the same total, add them and divide by how many there are. 20%, 50% and 80% average to 50%.
If the percentages come from different group sizes, you should use a weighted average instead of a simple mean.
Yes. Separate them with commas or spaces and the calculator averages them all.
Yes. Along with the average it shows how many percentages you entered.
Enter the percentages (comma or space separated). Read off your average percentage, together with count — the calculator updates automatically, with no button to press.