About the Average Calculator
Average Calculator does the math for you. Enter your values in the format shown and the result appears immediately — no spreadsheets, no formulas to remember, and nothing is uploaded to a server.
How Average works
The average (arithmetic mean) is the sum divided by how many numbers there are:
average = sum of values / count of values
Worked example — 10, 20, 30, 40:
- Add them up: 10 + 20 + 30 + 40 = 100
- Count: 4 numbers
- Divide: 100 / 4 = 25
How to use
- Enter your values as shown in the input box.
- The result is calculated instantly.
- Click Copy to use it.
Examples
| Input | Average |
|---|---|
10, 20, 30, 40 | 25 |
5, 7, 12 | 8 |
100, 250, 75, 25 | 112.5 |
Common uses
- Quick everyday math.
- Double-checking figures fast.
- Schoolwork and homework.
- Finance, health and planning.
Frequently asked questions
Is my data uploaded?
No — the calculation runs entirely in your browser, so your data stays private.
Is it free?
Yes — completely free with no sign-up.