Simple or weighted average
Enter your values to see the result, check the formula and copy your calculation.
Enter your values, then calculate.
Your calculation stays in your browser.
The formula, explained
mean = sum(value × weight) ÷ sum(weights)A comma can be a decimal separator, so separate values with semicolons or new lines. The displayed median and mode are calculated from the unweighted values.
An example to check
Using the starting values below, the calculation gives:
How to use this tool
Check the required inputs: values, separated by ; or a line, optional weights, in the same order.
Choose the units and options that match your task. Calculate, check the result and use Copy or Print to keep a record. Rounding applies to the display; keep more precision in intermediate steps.
Where are my inputs processed?
Calculations run in your browser. Form values are not sent to Analytics. Copying, printing, sharing or opening an external service is your choice.
Method and interface checked on 2026-09-12 · Report an error