Grade Average Calculator

Instantly calculate your grade average. Enter your grades (as numbers, percent, or letter), add optional weights, and see your average, percentage, and GPA—perfect for students, parents, and teachers.

Your Grade Average

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GPA (4.0 scale) Average (%)

What does this Grade Average Calculator do?

This interactive tool lets you enter individual grades with optional weights and format (number, percent, or letter). It instantly computes your class, subject, or assignment average as a percentage, on a GPA 4.0 scale, and (when possible) as a letter grade. It works for students, parents tracking progress, or teachers calculating class averages.

How to Use

Enter your grades in the input rows. Accepts:
Examples: 88, 92.5, 70%, B+, C, a-
Optional: Enter "Weight" for assignments with different importance (e.g., exams vs. quizzes). Leave blank for equal weight.
Add or remove rows as needed.
Click Copy Result to copy the summary.

Example Grades

Unweighted: 90, 85, 77, 100 → Average: 88.0% (B+), GPA: 3.33
Weighted: 92 (weight 3), 74 (weight 2), 85 (weight 5) → Weighted Avg: 84.8% (B), GPA: 3.10
Letter grades: A, B+, C → Translated to 94, 87, 77 → Avg: 86.0% (B), GPA: 3.21

Assumptions & Grade Scale

U.S.-standard letter-to-percent scale is used (see below).
Letters and percents are converted to a standard GPA (4.0 scale):
A (93-100%) = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, ..., F (<65%) = 0.0
All rows with blank grade are ignored.
For "Weight", leave blank or enter positive values; decimals supported.
This is for informational purposes only, not for official use. Check with your school for exact GPA/grade policies.

FAQ

Q: Can I enter percentage, number, or letter grades?

Yes! The calculator accepts numbers (e.g., 87), percentages (e.g., 82.5%), or U.S.-style letter grades (e.g., B+, c-, A).

Q: What if I leave weights blank?

If all weights are blank, grades are averaged equally. If some have weights and others do not, empty weights count as weight 1.

Q: Will it automatically show if I'm passing?

Yes—grades below 65%/D will highlight as failing. Color cues assist at a glance.

Q: Can teachers use this for class averages?

Absolutely! Input all student grades (with weights for exams/quizzes) to see the class average.

Q: Does it support other grading scales?

Currently, this calculator uses the U.S. scale. International or custom scales are not yet available.