Math Calculator

Average Percentage Calculator

Paste several percentages and get their simple average when each entry has equal weight.

Enter percentage values

Separate percents with commas, spaces, or line breaks. Do not include the % sign.

Clear

About this calculator

How to use Average Percentage Calculator, plus the formulas and logic behind the results.

Tool description

When each percentage is equally important, the average percentage is the arithmetic mean of the listed values.

How to use

  1. Enter two or more percentage numbers.
  2. Separate them with commas, spaces, or new lines.
  3. Select Calculate to view the mean percent.
  4. Review count and sum for a quick check.

Formulas & reference

  • Average % = (sum of percentages) ÷ count

Average tips

  • Equal-weight mean only
  • Ignore % symbols when typing
  • Need at least one valid number
  • Weighted cases need sample sizes

Calculation logic

Numeric tokens are parsed from the textarea. Their sum is divided by the count. Non-numeric tokens are ignored.

This is an unweighted mean. If percentages come from different sample sizes, use a weighted average instead.

Average Percentage Calculator FAQ

Common questions about this calculator and how to use the results.

How do you average percentages?

Add the percentages and divide by how many there are, when each has equal weight.

When is a simple average wrong?

If each percent represents a different sample size, use a weighted average.

Can I mix decimals like 85.5?

Yes. Decimal percentages are supported.

Do I need to type the % sign?

No. Enter the numeric part only.

What if I enter only one value?

The average equals that single percentage.

Are negative percentages allowed?

Yes, if they appear in your data; they are included in the mean.