Weighted Average Calculator
Weighted Average Calculator: calculate weighted average with consistent units and explicit assumptions.
Inputs
Row 1
Row 2
Results
- Weighted average
- 17.5 units
- Total weight
- 4 units
| Included row | Value | Weight | Running average |
|---|---|---|---|
| 1 | 10 | 1 | 10 |
| 2 | 20 | 3 | 17.5 |
Formula
Weighted average = Σ(value × weight) / Σweight
Assumptions & limits
- Unchecked rows are excluded; running averages follow included row order.
Worked example
For the example inputs: Weighted average = 17.5 units; Total weight = 4 units.
Weighted average = Σ(value × weight) / Σweight