Calculate your moyenne instantly
Enter your grades on a /20 scale, add coefficients (weights), and calculate your weighted moyenne in one click.
Tip: In many systems, 10/20 is considered the passing threshold.
Quick simple average
Need a fast result? Enter numbers separated by commas, spaces, or semicolons.
What is a moyenne calculator?
A moyenne calculator helps you compute your academic average quickly and accurately. The word moyenne is commonly used in French-speaking education systems to describe a student’s average mark. Depending on your school, this can be a simple average or a weighted average using coefficients.
If some subjects matter more than others, a weighted moyenne gives a fairer final score. For example, mathematics might have coefficient 4 while art has coefficient 1. This calculator handles both situations so you can track your performance in real time.
Simple average vs weighted average
Simple average
Use a simple average when every grade has the same importance:
Simple moyenne = (sum of grades) / (number of grades)
Weighted average (with coefficients)
Use a weighted average when subjects have different importance:
Weighted moyenne = (sum of grade × coefficient) / (sum of coefficients)
This method avoids treating all courses equally when your school clearly does not.
How to use this moyenne calculator
- Add one row per subject.
- Enter your grade out of 20.
- Enter a coefficient (default can be 1).
- Click Calculate Moyenne.
- Review your weighted score, percentage, and progress toward your target.
Why students use moyenne tools
- Clarity: instantly understand where you stand.
- Planning: identify which subject can raise your final average most.
- Motivation: turn vague goals into measurable targets.
- Accuracy: avoid manual calculation mistakes before report cards or exams.
Example calculation
Suppose you have the following grades:
- Math: 15, coefficient 4
- History: 12, coefficient 2
- English: 14, coefficient 3
Compute weighted sum:
(15×4) + (12×2) + (14×3) = 60 + 24 + 42 = 126
Compute total coefficients:
4 + 2 + 3 = 9
Final moyenne:
126 ÷ 9 = 14.00/20
Common mistakes to avoid
- Mixing scales (for example, entering one grade out of 100 and others out of 20).
- Forgetting to include coefficients.
- Using zero or negative coefficients.
- Rounding too early during manual calculations.
Final tip
Don’t wait until the end of the term. Update your moyenne each week. Small corrections in study strategy—especially in high-coefficient subjects—can create a meaningful jump in your final average.