Average Calculator

What this calculator does

Calculate mean, median, mode, range, sum and count from a list of numbers, with each statistic shown separately for quick verification.

Worked example

How the calculation works

The arithmetic mean is the sum divided by the number of values. The median is the middle value after sorting, the mode is the most frequent value, and the range is maximum minus minimum.

When to use it

• Summarize grades, measurements or survey responses
• Compare a typical value with the spread of a small dataset
• Check calculations before entering a summary in a report

Limits and checks

• A mean can be strongly affected by outliers.
• The mode may be absent or may contain more than one value.
• Use a consistent decimal separator and remove units from the input.

Frequently asked questions

When should I use median instead of mean?

Median is often more representative when a dataset contains strong outliers or is skewed.

Does the calculator ignore duplicate values?

No. Every entered value contributes to the count, mean and frequency calculations.

Should blank cells count as zero?

No. Remove blanks unless zero is an actual observation, because adding zeros changes both the sum and the item count.