⚖️ Weighted Average Calculator
Calculate weighted average from value-weight pairs
ValueWeight
How Weighted Average Works
Formula
Weighted Average = Σ(value × weight) / Σ(weight)
- 1Enter pairs of values and their corresponding weights.
- 2Each value is multiplied by its weight.
- 3All the products (value × weight) are summed.
- 4All the weights are summed separately.
- 5The weighted average is the product sum divided by the weight sum.
About Weighted Average Calculator
Calculate weighted averages by entering value-weight pairs. Perfect for GPA calculation, portfolio returns, or any weighted scoring. Shows step-by-step table.
Frequently Asked Questions
When should I use a weighted average?
Use a weighted average when some values are more important than others — for example, calculating GPA (courses have different credit hours), portfolio returns, or weighted exam scores.
What if all weights are equal?
If all weights are the same, the weighted average equals the simple arithmetic mean.
Can weights be percentages?
Yes. Weights can be any numbers — percentages, credit hours, or any measure of importance. The formula normalizes them by dividing by the total weight.