Grade Average Calculator
Calculate your weighted or simple average grade from multiple subjects or assignments.
Did this tool work for you?
How to use this calculator
Each grade is multiplied by its weight, the products are summed, then divided by the total weight. Without weights, all grades are averaged equally.
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Enter your grades as comma-separated numbers (e.g. 85, 90, 78).
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Optionally enter matching weights as percentages to calculate a weighted average.
- 3
Read your average grade, letter grade, GPA equivalent, and individual highs and lows.
Frequently asked questions
What if I leave the weights blank?
The calculator will use a simple average, treating every grade equally regardless of its importance.
How is the letter grade determined?
A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, F < 60. These are standard US academic thresholds.
What GPA scale is used?
The standard 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0.
Grade Average Calculator — Simple & Weighted
Why use a weighted grade calculator?
Different assignments carry different importance. A final exam worth 40% of your grade should impact your average more than a quiz worth 5%. Weighted averages reflect this reality so you can accurately predict your final grade and focus your study time where it matters most.
How to improve your grade average
Identify your lowest-performing subjects and focus extra study time there. Use the weights field to see which assignments have the biggest impact on your overall average — a small improvement on a high-weight item moves the needle more than a big improvement on a low-weight one.
Learn more from an authoritative source:
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →