1. What is a Grade Calculator with Percentages?

Definition: This calculator computes the weighted average of grades based on their percentage values and corresponding weights.

Purpose: It helps students and educators determine overall performance when different assignments or exams carry different weights.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( G \) — Final grade percentage
• \( P \) — Individual grade percentages
• \( W \) — Weights of each grade component

Explanation: Each grade is multiplied by its weight, these products are summed, then divided by the total of all weights.

3. Importance of Weighted Grade Calculation

Details: Proper grade calculation ensures fair assessment when different components (exams, homework, projects) contribute differently to the final grade.

4. Using the Calculator

Tips: Enter each grade percentage (0-100) and its corresponding weight. Click "Add Another Grade" for multiple components. Weights don't need to sum to 100 - the calculator normalizes them automatically.

5. Frequently Asked Questions (FAQ)

Q1: Should weights sum to 100%?
A: No, the calculator will normalize the weights. You can use any numbers that represent the relative importance of each component.

Q2: How many grade components can I add?
A: You can add as many as needed - the calculator will handle them all.

Q3: What if I have extra credit?
A: Add it as an additional grade component with its point value and weight.

Q4: Can I use this for non-percentage grades?
A: Yes, as long as all grades use the same scale (e.g., all out of 100 points).

Q5: How accurate is the calculation?
A: The calculator uses precise floating-point arithmetic, displaying results to 2 decimal places.