Average Calculator
Calculate mean, median, mode, sum, range and standard deviation of a list of numbers. Free online average calculator.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
Average (mean)
18
Median 15.5
Mode none
Sum 108
Count 6
Min / Max 4 / 42
Range 38
Standard deviation 12.315302
How to use Average Calculator
- 1Enter your numbers or dates.
- 2Results update instantly as you type.
- 3Copy the main result with one click.
Questions
Is Average Calculator free?
Yes. Average Calculator is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does Average Calculator work on my phone?
Yes. Average Calculator works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.
How accurate is it?
Calculations use standard formulas with full floating-point precision. For medical, legal or financial decisions, please confirm with a professional.