Grade Average Calculator — Simple & Weighted

What is Grade Average?

A grade average combines scores from multiple subjects or assignments into a single representative grade. It is the most common way teachers, universities, and scholarship committees evaluate overall academic performance across a term.

This calculator supports both simple average (equal weight for all subjects) and weighted average (custom weights per subject), so you can choose the method that matches your school's grading policy.

Simple vs. Weighted Average

Simple Average

Average = Sum of Grades ÷ Number of Subjects

Best when all subjects have equal importance.

Weighted Average

Average = Σ(Grade × Weight) ÷ Σ(Weights)

Best when subjects have different credit hours or values.

Example Calculation

Math: 88% · English: 92% · Science: 75%

Average = (88 + 92 + 75) ÷ 3 = 85%

Why Use This Tool?

• Handles unlimited subjects
• Switch between simple and weighted modes instantly
• Converts average to letter grade and GPA
• Pass/fail status shown automatically
• 100% free, no login required

Frequently Asked Questions

What grade is an 85% average?
An 85% average is a B grade (GPA 3.0 on a 4.0 scale). It is a strong, above-average result.

Does GPA use a simple or weighted average?
GPA uses a weighted average — each course grade is multiplied by its credit hours before summing.

Can I use this for semester grades?
Yes. Enter your subject grades for the semester and the calculator will give you your overall semester average.