Grade Calculator
Calculate your weighted grade and letter grade across all assignments.
How this is calculated
Weighted average = sum(score/maxScore x weight) / sum(weight) x 100
Frequently Asked Questions About Grade Calculator
A grade calculator computes your weighted grade percentage and letter grade based on individual assignment scores and their weights. It shows your overall class performance.
How is a weighted grade calculated?
Each assignment is divided by its max score, multiplied by its weight (percentage), then summed and divided by total weight. For example, if homework is 20% and you scored 85/100, that contributes 0.2 × 85 = 17 points to your overall grade.
What is the difference between weighted and unweighted grades?
Weighted grades treat different assignments differently based on importance. For example, exams might be 50% and homework 20%. Unweighted grades treat all assignments equally. Most classes use weighted grades to emphasize major assessments like exams.
How do I convert a percentage to a letter grade?
Standard conversion: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%, F = below 60%. Some schools use different scales (A = 93-100%, A- = 90-92%, etc.). Check your teacher's grading scale.
Can I see what grade I need on the final exam?
Some grade calculators have a "what-if" feature to calculate required grades. Manually: (target grade × total weight − current points) / final exam weight = required score. For example, to get an A overall, calculate how much the final exam needs to boost your average.
How often should I update my grade calculator?
Update after each assignment is graded and returned. Checking frequently helps you track progress and identify weak areas early. If you're struggling, you have time to improve before the final.
What if my teacher uses a different grading scale?
Always use your teacher's stated grading scale, not assumptions. Some use +/− grades (A+ = 97-100%), some use wider ranges. Ask your teacher or check the syllabus for the exact scale used in your class.