Average Calculator

1. 01Enter your numbersType each value into its own row. Use "Add number" for more rows.
2. 02Read the resultsThe mean, median, mode, range, minimum, maximum, count, and sum update automatically as you type.

• Grading and test scoresFind the class average, the middle score (median), and the most common score (mode) for a set of grades.
• Sports and performance statsSummarize a series of results, times, or scores to see the typical value and how spread out they are.
• Budgeting and expense trackingAverage a list of monthly bills or expenses, and see the highest and lowest values at a glance.

• A simple set of scoresFor 2, 4, 4, 6: the mean is 4, the median is 4, the mode is 4, and the range is 4 (6 − 2).
• An even-count listFor 1, 2, 3, 4: the median is the average of the two middle values, 2 and 3, giving 2.5. There is no mode, since every value appears once.
• A list with two common valuesFor 1, 1, 2, 2, 3: both 1 and 2 appear twice, more than any other value, so the mode is 1 and 2 (multimodal).

Mean is the sum of all values divided by the count — the everyday "average." Median is the middle value once the numbers are sorted; for an even count, it is the average of the two middle values. Mode is the value (or values) that appears most often; if every value appears exactly the same number of times, there is no mode. Range is the maximum value minus the minimum value, showing how spread out the data is.

Enter any list of numbers, including negative numbers and decimals. The tool returns the count, sum, mean, median, mode, minimum, maximum, and range. A dataset can have no mode (every value unique), one mode, or several tied modes.

The mean is sensitive to extreme values (outliers) — a single very large or small number can pull it away from what feels "typical." The median ignores outliers and reflects the true middle of the data, which is often a better summary for skewed datasets like income or home prices. The mode is the only measure that works for identifying the most frequent value, even in non-numeric contexts.

The calculation runs entirely in your browser. The numbers you enter are never uploaded, stored, or shared, and closing the tab clears everything.

What is the difference between mean, median, and mode?

The mean is the sum of all values divided by how many there are. The median is the middle value when the numbers are sorted. The mode is the value that occurs most often. All three describe a "typical" value, but they can differ when the data is skewed or has repeated values.

Why does my dataset show no mode?

A mode only exists when at least one value repeats more often than the others. If every number in your list is unique, there is no mode.

Can a dataset have more than one mode?

Yes. If two or more values are tied for the highest frequency, the dataset is multimodal and all of the tied values are shown as the mode.

How is the median calculated for an even number of values?

Sort the values, then average the two values in the middle. For example, in 1, 2, 3, 4, the median is (2 + 3) ÷ 2 = 2.5.

Is my data saved?

No. Everything is calculated in your browser; nothing is sent to a server.