1. What is a Letter Grade Average Calculator?

Definition: This calculator computes the weighted average of letter grades and converts it to both a percentage and final letter grade.

Purpose: It helps students and educators determine overall performance when grades are given as letters with different weights.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Grade — Letter grade converted to percentage (A=95%, A-=90%, etc.)
• Weight — Importance or credit value of each grade

Explanation: Each letter grade is converted to a percentage value, multiplied by its weight, summed together, then divided by total weight.

3. Importance of Grade Calculation

Details: Accurate grade calculation ensures fair assessment of overall performance, especially when different assignments/exams carry different weights.

4. Using the Calculator

Tips:

• Enter letter grades separated by commas (A, B+, C-)
• Enter corresponding weights (3, 2, 1) or leave blank for equal weighting
• Supported grades: A, A-, B+, B, B-, C+, C, C-, D+, D, D-, F

5. Frequently Asked Questions (FAQ)

Q1: What percentage scale does this use?
A: Standard US scale (A=95%, A-=90%, B+=87%, etc.) with +/- variations of 3%.

Q2: Can I use different grade scales?
A: Currently only supports standard US letter grades. For custom scales, use a percentage calculator.

Q3: How are weights applied?
A: Weights multiply the grade value. A 3-credit A (95%) counts 3× more than a 1-credit A.

Q4: What if I don't enter weights?
A: All grades will be weighted equally (weight=1 for each).

Q5: Can I calculate semester GPA with this?
A: This shows average performance but not GPA. For GPA calculation, use a dedicated GPA calculator.