Weighted Mean Calculator

Value:
Weight:
Value:
Weight:
Value:
Weight:

Results:

Weighted mean:
Calculation:
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How to calculate the Weighted Mean?

To calculate the weighted mean, sum the result of every value multiplied by a weight and divide it by the sum of all weights.
Example:
We have two values: 2, and 5. The 2 weigh 4, and the 5 weigh 20.

Weighted Mean = (2 * 4 + 5 * 20) / (4 + 20) = (8 + 100) / 24 = 108 / 24 = 4.5