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Semester Grade Calculator
Enter your subjects, scores, and credit weights. Get your weighted average, overall letter grade, and GPA in seconds.
📋Your Subjects & Grades
Grading Scale
| Subject / Course | Score | Credits / Weight | Grade |
|---|
How This Calculator Works
Enter each subject with its score and credit weight. The calculator computes a weighted average — subjects worth more credits count more toward your final grade.
Results update live as you type. The letter grade and GPA are assigned based on the selected grading scale.
Weighted Average Formula
The weighted average gives each grade a proportional influence based on its credit weight:
Weighted Average = Σ (Score × Credits) ÷ Σ Credits
Example: Math (85, 4 cr) + English (92, 3 cr) + History (78, 3 cr)
= (85×4 + 92×3 + 78×3) ÷ (4+3+3) = 846 ÷ 10 = 84.6
Example: Math (85, 4 cr) + English (92, 3 cr) + History (78, 3 cr)
= (85×4 + 92×3 + 78×3) ÷ (4+3+3) = 846 ÷ 10 = 84.6
If all subjects have equal weight (1 credit each), the result is a simple average.
Grade Scale Reference
Letter grades and GPA equivalents for the default 0–100 scale:
| Letter | Range | GPA | Description |
|---|---|---|---|
| A+ | 97–100 | 4.0 | Exceptional |
| A | 93–96 | 4.0 | Excellent |
| A− | 90–92 | 3.7 | Nearly excellent |
| B+ | 87–89 | 3.3 | Very good |
| B | 83–86 | 3.0 | Good |
| B− | 80–82 | 2.7 | Above average |
| C+ | 77–79 | 2.3 | Slightly above average |
| C | 73–76 | 2.0 | Average / Satisfactory |
| C− | 70–72 | 1.7 | Slightly below average |
| D+ | 67–69 | 1.3 | Below average |
| D | 60–66 | 1.0 | Poor but passing |
| F | 0–59 | 0.0 | Failing |
How to Raise Your Semester Grade
- Focus on high-credit subjects first. A 5-credit course moves your average far more than a 1-credit elective.
- Use the "what do I need" strategy. Work backwards: enter your current grades and adjust the score you need on finals to hit your target GPA.
- Protect your best grades. Dropping a 95 to an 85 in a heavy course costs more than gaining 10 points in a light one.
- Extra credit matters most late in the semester. Its impact is multiplied by remaining assignments still due.
Frequently Asked Questions
What's the difference between weighted and unweighted GPA?▼
An unweighted GPA treats every course equally. A weighted GPA accounts for difficulty (honors, AP) or credit hours — harder or heavier courses count more. This calculator uses credit-hour weighting, not difficulty weighting.
What if I don't know the credit weights?▼
Set all credits to 1. This gives you a simple average of all your scores without any subject counting more than another — useful when every class has equal time allocation.
How is GPA calculated on a 4.0 scale?▼
Each letter grade maps to a point value (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0 with +/− adjustments). GPA is the weighted average of those points across all your credit hours.
What final exam score do I need to pass?▼
Use the "what do I need" trick: enter your current weighted grade, set your target passing score (often 60–70), and calculate what the remaining assessment would need to be. You can input a hypothetical final exam as its own row with its credit weight.
Does this work for university and high school?▼
Yes. For university, use actual credit hours (3, 4, 5 credits). For high school where all classes are equal, use credit = 1 for all subjects. The formula and letter grade logic are the same either way.