How is a weighted average calculated?

Multiply every value by its credit or coefficient, add those products, and divide by the sum of all weights.

How do I calculate a midterm and final grade?

Enter the midterm and final scores as values and their percentage weights as coefficients. For example, use weights of 40 for the midterm and 60 for the final.

How do course credits affect an average?

A course with more credits has more influence on the weighted average because every course grade is multiplied by its credit value.

What score do I need to reach my target average?

Enter current values and weights, select Find Target Value, then provide the desired average and the weight of the next grade.

Why is the required score greater than 100?

If the existing weighted sum and the next grade's weight are not enough to reach the target, the required score may exceed 100 and be unreachable on a 100-point scale.

Do the weights have to add up to 100?

No. The calculator automatically divides by the total weight, so percentages such as 40 and 60 or coefficients such as 2 and 3 both work.

Tools/🧮 Calculators/Weighted Average Calculator

Weighted Average Calculator

Calculate weighted averages using grades, credits, and coefficients or find the value needed for a target average.

Version 1.0 · Last Updated: August 7, 2026 · Maintained by ToolLarder

Weighted average and target grade calculation

Use a weighted average when values do not affect the result equally. Course credits, exam percentages, and other coefficients can be entered as weights, while target mode calculates the new value needed to reach a desired average.

How to calculate a weighted average

Multiply every value by its weight, add the weighted values, and divide by the sum of all weights.

Σ(value × weight) ÷ Σweight

Weighted grade and exam average

Enter midterm, final, assignment, or project grades with their percentages or coefficients to calculate the final weighted grade.

Σ(grade × exam weight) ÷ Σweight

Credit-weighted average

Enter each course grade and credit separately so courses with more credits have the correct influence on the result.

Σ(course grade × credits) ÷ total credits

Score needed for a target average

When current grades, a target average, and the next item's weight are known, the required new score can be calculated backward.

(target × new total weight − current weighted sum) ÷ new weight

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