Math & Statistics · Tool #07
Weighted Average Calculator
Calculate an average when values have different weights.
Values & Weights
Enter paired values and weights, one pair per line.
Weights must be non-negative. Example: 80,20 means value 80 with weight 20.
Weighted average = Σ(value × weight) ÷ Σ(weights).
Weighted Result
Weighted average and totals.
Weighted average
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Total weight
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Weighted sum
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How to use this calculator
What to enter
Enter or select the following as requested: Value, Weight pairs. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The statistic summarizes the entered data using the measure named by the calculator. Results depend on the supplied observations and, where applicable, whether the data are treated as a sample or an entire population.
When to use it
Use this to summarize or compare a dataset. Check data quality, missing values, units, and the sample-versus-population convention before interpreting the statistic.