When should I use median instead of mean?

Use median when your data has extreme outliers. For example, average household income is best shown as median because a few very high earners skew the mean significantly upward. Median gives a better sense of the 'typical' value.

What is a weighted average?

A weighted average gives different importance (weight) to different values. For example, if a final exam is worth 40% and quizzes 60%, multiply each grade by its weight before averaging. GPA calculators use weighted averages by credit hours.

How do I calculate a class average?

Add all student scores together and divide by the number of students. Or for your own GPA: add all your grade points (A=4, B=3, etc.) and divide by the number of courses.

What is a moving average?

A moving average calculates the average of a sliding window of data points. For example, a 7-day moving average takes the average of the last 7 days, recalculated daily. It's widely used in finance and trend analysis to smooth out short-term fluctuations.

Average Calculator — Mean, Median & Mode

The Average Calculator computes the mean (arithmetic average) of a dataset — the most common way to summarize a set of numbers. The mean is calculated by adding all numbers together and dividing by the count. This free calculator accepts up to 20 numbers, or you can calculate the average of just two values. Used in school grades, sports statistics, financial analysis, and everyday decision-making.

Number 1

Number 2

Number 3 (optional)

Number 4 (optional)

How many numbers are you averaging?

Frequently Asked Questions

Mean is the arithmetic average (sum ÷ count). Median is the middle value when sorted — less affected by outliers. Mode is the most frequently occurring value. For symmetric data, they're similar; for skewed data (like incomes), median is often more representative.

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