Average Calculator

Enter a list of numbers to get the mean along with the median, mode, standard deviation and more. You can also work out a weighted average, such as a GPA.

Mean
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Count
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Sum
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Median
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Mode
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Minimum
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Maximum
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Range
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Std. deviation (population)
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Std. deviation (sample)
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Enter one "value weight" pair per line. For example, a 4.0 grade in a 3-credit course is 4.0 3.

Weighted average
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Total weight
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Everything you enter is processed in your browser and is never sent to or stored on a server.

What is an average calculator?

Use it to summarize a set of numbers such as test scores, sales or measurements. The mean is pulled by extreme values, so checking the median as well gives a clearer picture. Standard deviation shows how spread out the values are around the mean. The weighted average box handles cases where items count differently, such as course credits.

How to use

  1. Type numbers separated by spaces, commas or new lines, or paste a column from a spreadsheet.
  2. The mean, sum, median, mode, standard deviation and more are calculated right away.
  3. For a weighted average, enter one "value weight" pair per line in the second box.

Frequently asked questions

What is the difference between mean and median?

The mean is the sum divided by the count. The median is the middle value when the numbers are sorted. For 1, 2, 3 and 100, the mean is 26.5 but the median is 2.5, so the median is less affected by outliers.

When should I use population or sample standard deviation?

Use population if your numbers are the whole group, such as every student's score in a class. Use sample if they are a subset of a larger group. The sample version divides by n - 1 instead of n.

Can I enter numbers like 1,000?

Commas are read as separators, so 1,000 becomes 1 and 0. Leave out thousands separators.

How do I calculate a GPA?

In the weighted average box, enter each course's grade points and credits on its own line. The result is the grade points times credits, added up and divided by total credits.