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Grade Calculator

Calculate your weighted final grade from assignments, tests, and exams. Or find out exactly what score you need on your final to reach your target grade.

Weighted Grade Calculator

Assignment
Score
Max
Weight %
Weights total: 0%
Custom Grade Cutoffs (optional)

What Grade Do I Need on My Final?

Enter your current standing and the weight of your final exam to find the score you need.

How Weighted Grades Are Calculated

Score% = (Score ÷ Max Score) × 100
Weighted Sum = Σ (Score% × Weight%) for each item
Final Grade% = Weighted Sum ÷ Σ Weights
Required Final = (Desired − Current_weight_fraction × Current%) ÷ Final_weight_fraction

For the final exam formula, weight fractions are the weights divided by 100 (e.g. 30% weight = 0.30 fraction).

How to Use the Grade Calculator

  1. 1
    Add Your Graded Items
    Enter each assignment, test, or quiz with its score, maximum score, and weight percentage.
  2. 2
    Check Weight Total
    Weights must sum to 100% for accurate results. A warning appears if they don't.
  3. 3
    Optionally Adjust Cutoffs
    Open "Custom Grade Cutoffs" to change the default A/B/C/D/F percentage thresholds.
  4. 4
    Find Your Final Exam Score
    Use the second tool to find the exact score you need on your final exam to reach a target grade.

Example: Final Exam Needed

Current grade: 82%, current work weight: 70%, final weight: 30%, desired grade: 90%

Required = (90 − 0.70 × 82) ÷ 0.30
Required = (90 − 57.4) ÷ 0.30
Required = 32.6 ÷ 0.30 = 108.7% ← Not achievable
An A is not possible; aim for the highest score achievable.

Frequently Asked Questions

Convert each score to a percentage, multiply by its weight, sum all weighted scores, then divide by the total weight. If weights sum to 100%, the result is your final grade percentage.

Use the formula: Required = (Desired Grade − Current Weight Fraction × Current Grade) ÷ Final Weight Fraction. If the result exceeds 100%, achieving the desired grade is mathematically impossible.

The calculator warns you and divides by the actual total weight, which normalizes the result. However, for the most accurate grade, ensure your weights sum exactly to 100%.

Grades measure performance in a single course (usually as a percentage or letter). GPA is a standardized metric that aggregates letter grades across multiple courses weighted by credit hours.

In the US, A is 90-100%, B is 80-89%, etc. The UK uses First/2:1/2:2/Third. India often uses distinction (75%+), first class (60%+), and second class (50%+). Scales vary widely by institution and country.

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