Arithmetic Mean Calculator
Sum of values divided by their count.
Results and explanation
Enter your inputs to get started.
Numbers are processed locally. Results use floating-point arithmetic and up to 10 significant digits. List fields accept commas, spaces or line breaks.
How to use this calculator
Add the values and divide by their count.
Worked example
For 10, 20, and 30, the mean is 60 ÷ 3 = 20.
Check the units and assumptions before using your result. Explore related calculators or read our statistics guides.