Below is a weighted average calculator that computes the weighted mean of a set of values. Enter values and their weights to find the weighted average.
Weighted Average Calculator
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Using the weighted average calculator
Enter each value and its corresponding weight. Use the + Add Row button to add more value/weight pairs. The calculator computes the weighted average in real-time, also showing:
- Sum of all weights
- Simple (unweighted) average for comparison
- The formula breakdown
What is a weighted average?
A weighted average (or weighted mean) gives different values different levels of importance. Unlike a simple average where all values count equally, a weighted average multiplies each value by its weight before averaging:
\text{Weighted Average} = \frac{\sum(value \times weight)}{\sum weights}
Example: Calculating your GPA
Suppose you have these grades:
- A (4.0) in a 4-credit course
- B (3.0) in a 3-credit course
- A (4.0) in a 2-credit course
\text{GPA} = \frac{(4.0 \times 4) + (3.0 \times 3) + (4.0 \times 2)}{4 + 3 + 2} = \frac{33}{9} = 3.67
