Weighted Average Calculator for Grades and Final Exam
Get your weighted average and the final exam score needed to reach your target.
Enter each grade and its weight (%). The weighted average sums (grade × weight) and divides by total weight.
Weighted average
7,00
Total weight: 100%
Grade needed on the final exam
You need a -193,00 on the final exam to reach 5,0.
If your weights add up to less than 100%, the calculation normalizes by dividing by the total weight entered.
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Frequently asked questions
How do I calculate a weighted average?
Multiply each grade by its weight (as a decimal), add all the results, then divide by the sum of the weights. If your weights are percentages, use them as decimals. For example, 20% becomes 0.20. This gives you your overall weighted grade.
What is the difference between a weighted average and a simple average?
A simple average treats every score equally, so a homework and a final exam count the same. A weighted average gives more importance to assignments with higher weights. This is more accurate because tests and projects often contribute differently to your final grade.
How can I find out what I need on the final exam?
Use the final exam weight and your current grade. The required score is: (target grade - current average × (1 - final exam weight)) / final exam weight. For example, with a current average of 78, a final exam worth 30%, and a target grade of 80, you need 84.67 on the final exam.
What Is a Weighted Average Calculator?
A weighted average calculator helps you compute your overall grade when different assignments have different weights. Instead of treating every score equally, it multiplies each grade by its weight and divides by the total weight. This tool is ideal for students who need to track their academic performance and plan their final exam target.
How to Calculate Your Weighted Grade
To calculate your weighted grade, multiply each score by its weight in decimal form, add all the results, and divide by the sum of weights. For example, if a quiz is worth 20% and you scored 90, that contributes 18 points to your overall average. Repeat for every assignment and sum them up.
What Score Do You Need on the Final Exam?
Enter your current weighted average, the final exam weight, and your target final grade. The calculator uses the formula: required final score = (target grade - current average × (1 - final weight)) / final weight. This shows exactly the minimum score you need to pass or reach your goal.