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Weighted Average Calculator

Calculate weighted averages for GPA, portfolio returns, or grades. Includes grade templates, percentage tracking, and scenario planning.

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Total Usage 1 times
Category Academic Calculators
Activity / Name Weight (w) Grade/Value (x)
Weighted Average
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Total Weight: 0
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About

A simple arithmetic mean is insufficient when certain values carry more significance than others. Whether calculating a Grade Point Average (where credit hours dictate importance) or a financial portfolio (where asset allocation defines impact), a Weighted Average Calculator is required.

This tool ensures precision by allowing dynamic weight assignment (percentage or raw value). It automatically validates if weights sum to 100% (or 1.0) and includes a 'Scenario Mode' to determine the required score on a remaining assignment to achieve a target final grade.

gpa grades statistics mean weighted average

Formulas

The weighted mean (x) is the sum of products divided by the sum of weights.

x = n∑i=1 wi xin∑i=1 wi

Reference Data

ScenarioValue (x)Weight (w)Calculation
Course Grade85%20% (Midterm)85 × 0.20 = 17
Portfolio+5% Return$10,000 Invested5 × 10000 = 50000

Frequently Asked Questions

No. You can use raw numbers (e.g., Credits: 3, 4, 1) or percentages (20%, 30%, 50%). The formula normalizes them automatically by dividing by the sum of weights.
Enter your current grades and their weights. Add a new row for the final exam. Leave the 'Grade' field empty but fill the 'Weight'. The math rearranges to solve for the missing variable based on your desired total.