Education
GPA, grades & study calculators
Weighted Grade Calculator
Course grade from weighted categories or points — with drop-lowest. Accurate, instant and free — for United States.
What these mean:
Categories
Your weighted course grade across 4 categories is 88.6% — a letter grade of B. Each category counts in proportion to its weight.
Course grade
88.60%
Letter grade
B
Total weight
100.00%
| Category | Weight | Score | Contribution |
|---|---|---|---|
| Homework | 20% | 95% | 19.00 |
| Quizzes | 20% | 88% | 17.60 |
| Midterm | 25% | 82% | 20.50 |
| Final | 35% | 90% | 31.50 |
How the weighted grade is built
Need to know the score required on your last exam to hit a target? Use the Final Grade Calculatorfor “what you need on the final”. Rolling course grades up into a term GPA? See the GPA Calculator.
How a weighted course grade is calculated
A weighted grade multiplies each category's score by its weight, sums the products, and divides by the total weight. A points-based grade instead adds every point you earned and divides by every point possible. Pick the model your syllabus uses.
Category weights
Σ(weight × score) ÷ Σ(weight)
grade = Σ(weight × score) ÷ Σ(weight)
Weights should sum to 100%. A 35% final moves your grade far more than 10% homework.
Points earned
Σearned ÷ Σpossible × 100
grade = Σ(earned) ÷ Σ(possible) × 100
Every point counts the same; a bigger item is worth more because it has more points.
- 1Multiply each category by its weight: 20×95 + 20×88 + 25×82 + 35×90 = 1900 + 1760 + 2050 + 3150 = 8860, over a total weight of 100 → 8860 ÷ 100 = 88.6% (a B).
- 2Work backward instead: To find the score you still need on the final, use the Final Grade Calculator.
Dropping your worst score, and percent → letter
If your syllabus drops your lowest quiz or two, set Drop lowest N — the weighted average is recomputed on the categories that remain, so the survivors carry more of the grade.
US letter bands
Weights must reflect your real syllabus
Frequently asked questions
A weighted grade assigns each category (homework, quizzes, midterm, final) a percentage weight that sums to 100%, and averages your category scores in proportion to those weights — so a 35%-weighted final moves your grade far more than a 10%-weighted homework set. A points-based grade ignores categories and simply adds up every point you earned and divides by every point possible; here a 200-point final naturally counts more than a 20-point quiz because it is worth more raw points. Use whichever model your syllabus states.
For a true course grade, yes — a standard syllabus splits 100% across its categories (for example 20% homework, 20% quizzes, 25% midterm, 35% final). If your weights total something other than 100%, this calculator still returns a proportional weighted average and warns you, because the math is grade = Σ(weight × score) ÷ Σ(weight). But that number only matches your official grade when the weights reflect your real syllabus, so adjust them to sum to 100% unless you are deliberately modelling a partial term.
Some syllabi drop your worst one or two scores before averaging — commonly the lowest quiz. Set "Drop lowest N" to remove that many lowest-scoring categories, and the weighted average is recomputed on the categories that remain. Because the dropped category no longer contributes its weight, the surviving categories effectively carry more of the grade. Only use this if your instructor actually applies a drop policy.
This tool uses the common US band: 90% and above is an A, 80–89.9% a B, 70–79.9% a C, 60–69.9% a D, and below 60% an F. Many schools add plus/minus cutoffs (for example 87–89 = B+, 83–86 = B, 80–82 = B−) and some shift the thresholds, so always confirm against your own syllabus. The letter shown here is a guide to the standard whole-letter scale.
That is a different question — it works backward from a target grade rather than forward from known scores. Use the Final Grade Calculator, which takes your current grade, the final’s weight, and your target, then solves for the exact score you need (and flags when the target is already secured or no longer reachable).
Yes — it is completely free with no sign-up, and every calculation runs entirely in your browser. Nothing you enter is sent to a server or stored.
Method, assumptions & references
Methodology: weighted grade = Σ(weight × score) ÷ Σ(weight); points grade = Σ(earned) ÷ Σ(possible) × 100. Percent → letter uses the standard US whole-letter band (A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, else F). Drop-lowest removes the N lowest-scoring categories before averaging. All calculations run client-side; nothing is stored. Grading schemes and letter cutoffs vary by instructor — confirm against your syllabus.
Cross-links
How we calculate this
Reviewed by Reckonist Editorial · Last reviewed 4 July 2026. Figures follow the methods and sources set out in our editorial standards.
Weighted and points-based grading is standard arithmetic, but category weights, drop policies, and letter-grade cutoffs vary by instructor and institution. Always confirm against your own official syllabus. This is guidance only, not an official grade.
Keep going
Same-category tools follow this colour; a cross-category link keeps its own.