Everyday
Average calculator
Enter numbers separated by commas, spaces, or new lines. Get the arithmetic mean, the total, and the number of entries.
How to calculate it
Add all the numbers, then divide by how many there are. For 10, 20, 30 and 40, the total is 100. Dividing by four gives an average of 25. This is the arithmetic mean: every entry has equal weight.
Worked examples
| Example | Working | Answer |
|---|---|---|
| 10, 20, 30, 40 | 100 ÷ 4 | 25 |
| 5, 5, 8 | 18 ÷ 3 | 6 |
| −10, 0, 10 | 0 ÷ 3 | 0 |
| 2.5, 3.5 | 6 ÷ 2 | 3 |
| 4, 8, 15, 16, 23, 42 | 108 ÷ 6 | 18 |
| 100, 100, 100, 10 | 310 ÷ 4 | 77.5 |
Frequently asked questions
Can I use negative numbers and decimals?
Yes. Use a minus sign for negatives and a dot for decimals. Do not use commas as thousands separators: 1,000 is interpreted as two entries, 1 and 0. Enter 1000 instead.
Is this a weighted average?
No. Every entry counts equally. For a weighted mean, multiply each value by its weight, add those products, and divide by the sum of the weights.
How many values can I enter?
You can enter up to 1,000 numbers. Each must be between −1 trillion and 1 trillion. Results are rounded to up to 12 significant digits.
What is the difference between mean, median and mode?
The mean — what this tool calculates — is the sum divided by the count. The median is the middle value when the numbers are sorted. The mode is the value that appears most often. All three are types of average and can give different results for the same data.
Can I paste numbers copied from a spreadsheet?
Yes. Numbers separated by commas, spaces, new lines, tabs, or semicolons are all recognised, so pasting a column or row from a spreadsheet usually works without editing.
Method: standard arithmetic. Examples are illustrative. How our calculators work.