Average Percentage Calculator

The average percentage calculator finds the simple mean of two to five percentage values. It is useful for quick grade checks, survey summaries, conversion-rate snapshots, discount comparisons, and performance reports where each percentage should count equally.

How to use this calculator

1. Choose the number of percentages you want to include, from 2 through 5.
2. Enter each Percentage value as a percent number, such as 72.5 for 72.5%.
3. Read the Average percentage, plus the number of values and the sum of percentages used.

The form is intentionally a simple average tool. If one percentage is based on many more observations than another, combine the underlying totals instead of averaging the displayed percentages.

How it works

A simple average adds all selected percentages and divides by the count.

$average = sum\ of\ percentages \div number\ of\ values$

For example, 10%, 20%, and 30% add to 60%. Dividing 60% by 3 gives an average percentage of 20%. For related percent tasks, try the percentage calculator, percent to goal calculator, or percentage change calculator.

When a simple average is appropriate

Use a simple average when each percentage has equal weight, such as five equally weighted quizzes or repeated measurements with the same denominator. Do not use it to combine unequal traffic sources, differently weighted assignments, or groups with different sizes.

Common mistakes

• Averaging percentages from unequal denominators.
• Rounding each value before calculating the mean.
• Confusing percentage points with percent change.