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Grade Average Calculator - Weighted & Simple

Free grade average calculator. Calculate simple or weighted average of your grades. See your class average and letter grade.

Grade Average Calculator

Calculate your grade average

Enter your grades as percentages

Weight of each grade (must sum to 100)

Your Average

Enter your values to see results

and click the "Calculate" button

Grade Average Calculator

Calculate your average grade with optional weighting. Perfect for figuring out your class standing or what you need on the final.

Letter Grade Scale

A: 90-100, B: 80-89, C: 70-79, D: 60-69, F: <60

Weighted Average = Σ(Grade × Weight) / Σ(Weights). Without weights, simple average is used.

Frequently Asked Questions

How do weighted grades work?
If finals are 40% and homework is 60%: (Final × 0.40) + (Homework × 0.60) = weighted average. Heavier weights count more.
What grade do I need on the final?
Use: Needed = (Target - Current × (1-FinalWeight)) / FinalWeight. Example: need 80%, have 85% with 30% final: (80 - 85×0.7)/0.3 = 68.3%

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