Weighted Average Calculator
Average a list of values where each one counts by its own weight.
Weighted average
80.5
- Plain (unweighted) average
- 81.66666667
- Total weight
- 10
Show the work
Each value × its weight, added up
Σ(value × weight)
80 × 2 + 90 × 3 + 75 × 5 = 805
Total weight
Σ weights
2 + 3 + 5 = 10
Divide
weighted average = Σ(value × weight) ÷ Σ weights
805 ÷ 10 = 80.5
How it works
Weighted average = Σ(value × weight) ÷ Σ weights
Questions
- How does the weighted average calculator work?
- Weighted average = Σ(value × weight) ÷ Σ weights.
- What do I need to enter?
- Values, Weights (same order). Optional fields can be left blank.
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