Grade Calculator
Calculate weighted grade averages, GPA, and letter grades. Add multiple subjects with custom weights.
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Try nowGrade Calculator - Weighted Average & GPA | Tuttilo
Calculate your weighted grade average with our easy-to-use grade calculator. Add subjects, enter scores and weights for instant results.
Add each assignment, test, or subject by entering its score and weight (how much it counts toward your final grade). For example, enter "85" for a score and "30" if that assignment is worth 30% of your total grade. Tuttilo calculates your weighted average instantly, showing your percentage score, letter grade, and GPA on a 4.0 scale. You can add unlimited items and adjust weights and scores to see how different scenarios affect your final grade. All calculations happen locally in your browser to keep your academic performance data private.
College students track their course grades throughout the semester by entering scores as they receive them and projecting final grades. High school students calculate what score they need on a final exam to achieve a desired course grade. Teachers set up grading rubrics by experimenting with different weight distributions to understand how they affect overall grades. Parents help children understand how individual assignment scores contribute to report card grades. Graduate students track cumulative GPA across multiple courses and semesters.
Front-load your effort on high-weight assignments and exams, as a 95% on an item worth 40% of your grade impacts your final score far more than perfect scores on items worth 5% each. Always clarify your instructor's grading scale—some use a 10-point scale (90-100 = A) while others use a 7-point scale (93-100 = A). If you're close to a grade boundary, sometimes asking for small extra credit opportunities or assignment resubmissions can push you over the threshold. Track your grade weekly rather than waiting until the end of the term, giving you time to adjust your effort allocation or seek help before it's too late.
All processing happens directly in your browser. Your files never leave your device — no server uploads, no cloud storage, no data retention. The tool works offline once loaded, requires no registration, and is completely free with no usage limits.
Frequently Asked Questions
How is the weighted average calculated?
Each grade is multiplied by its weight, summed together, then divided by the total weight. Formula: Sum(grade × weight) / Sum(weights).
What grading scale is used?
The US letter grade scale: A (93+), A- (90+), B+ (87+), B (83+), B- (80+), C+ (77+), C (73+), C- (70+), D+ (67+), D (60+), F (below 60).
Can I use different weight values?
Yes, you can assign any weight to each subject. Common weights are credit hours or percentage of final grade.
Is there a limit on subjects?
No, you can add as many subjects as needed. Click the add button to include more entries.
Is my grade data stored?
No, all calculations happen locally in your browser. No grades are saved or transmitted.