Grade Calculator
Enter each assignment, test or category with its weight. See your current grade and letter, and what you need on the final to hit your target.
- Runs in your browser
- Weighted categories
- Final exam helper
- Free
Your grade so far
Scores as percentages (0–100). Weights as percent of the course or any relative numbers.
What do I need on the final?
Uses your current grade from above, or type one in. Full final grade calculator →
How your grade is calculated
Score × weight
Homework 92% worth 20, midterm 85% worth 30, project 78% worth 50: 1840, 2550, 3900.
Divide by total weight
(1840 + 2550 + 3900) ÷ (20 + 30 + 50) = 8290 ÷ 100 = 82.9%.
Letter grade
82.9% is a B− on the plus/minus scale in the table below, which is what this calculator uses (B starts at 83). On a simpler scale without plus and minus (A 90+, B 80+, C 70+, D 60+) the same 82.9% is a B. Check your syllabus — schools differ on the cut-offs, not the maths.
Letter grade scale used here
| Letter | A+ | A | A− | B+ | B | B− | C+ | C | C− | D+ | D | D− | F |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| From % | 97 | 93 | 90 | 87 | 83 | 80 | 77 | 73 | 70 | 67 | 63 | 60 | <60 |
This is the common US scale. Many schools use their own cut-offs, so check your syllabus.
Questions people ask
How do I calculate my grade average with weights?
Multiply each score by its weight, add those products, then divide by the sum of the weights. Homework 92 (weight 20), midterm 85 (30), project 78 (50): (92×20 + 85×30 + 78×50) ÷ 100 = 82.9.
What if my weights do not add up to 100?
That is fine. The calculator divides by whatever the weights total, so partial-semester weights still give the correct average of what you have so far.
How do I work out what I need on the final?
Needed = (target − current × (1 − w)) ÷ w, where w is the final’s weight as a decimal. With an 84.3 current grade, a 90 target and a final worth 30%: (90 − 84.3 × 0.7) ÷ 0.3 = 103.3. Over 100 means the target is out of reach without extra credit.
Can I enter points instead of percentages?
Convert each score to a percentage first (points earned ÷ points possible × 100), then enter it with its weight.
How do I calculate GPA?
GPA is a weighted average of grade points (A = 4, B = 3 and so on) weighted by credit hours. Enter each course’s grade points as the value and its credits as the weight in the weighted average calculator.
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