Grade Formula:
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Definition: This calculator computes a weighted grade based on percentages and their corresponding weights.
Purpose: It helps students and educators determine overall grades when different assignments or exams have different weights.
The calculator uses the formula:
Where:
Explanation: Each percentage is multiplied by its weight, summed together, then divided by the total weights.
Details: Weighted grades accurately reflect course performance when different assignments contribute differently to the final grade.
Tips: Enter each percentage score (0-100%) and its corresponding weight. Weights are relative (e.g., 1 for quizzes, 2 for tests).
Q1: How many components can I calculate?
A: This calculator handles two components, but you can chain calculations for more components.
Q2: What if my weights don't add up to 100?
A: The calculator normalizes weights automatically, so absolute values don't matter, only relative proportions.
Q3: Can I use decimals for weights?
A: Yes, weights can be any positive number, including decimals (e.g., 1.5 for midterm, 2.5 for final).
Q4: How do I calculate letter grades?
A: Convert the resulting percentage using your institution's grading scale (e.g., 90-100% = A).
Q5: What if I have more than two components?
A: Calculate the weighted average of two components first, then use that result with the third component.