# Grade Calculator

Calculate your weighted average grade from multiple assignments. Enter grades and weights to see your overall percentage, letter grade, and GPA equivalent.

## What this calculates

Calculate your weighted average grade for any class. Enter up to three assignment grades with their respective weights, and this calculator will compute your overall weighted average, letter grade, and GPA equivalent on a 4.0 scale.

## Inputs

- **Assignment 1 Grade** (%) — min 0, max 100
- **Assignment 1 Weight** (%) — min 0, max 100
- **Assignment 2 Grade** (%) — min 0, max 100
- **Assignment 2 Weight** (%) — min 0, max 100
- **Assignment 3 Grade** (%) — min 0, max 100
- **Assignment 3 Weight** (%) — min 0, max 100

## Outputs

- **Weighted Average**
- **Letter Grade** — formatted as text
- **GPA Equivalent**
- **Total Weight Used** — Should equal 100% for accurate results

## Details

Weighted averages ensure that more important assignments (like finals) count more toward your grade:

Weighted Average = Sum of (Grade x Weight) / Total Weight

For example, if homework (30%) is 90%, midterm (30%) is 85%, and final (40%) is 78%, your weighted average is (90x30 + 85x30 + 78x40) / 100 = 83.7%, which is a B.

Make sure your weights add up to 100% for accurate results. If they don't, the calculator normalizes them proportionally.

## Frequently Asked Questions

**Q: What if my weights don't add up to 100%?**

A: The calculator normalizes the weights automatically. For example, if you enter weights of 30, 30, and 20 (totaling 80), each weight is proportionally scaled to calculate the correct average. However, for the most accurate results, ensure your weights sum to 100%.

**Q: What is the standard letter grade scale?**

A: The most common scale is: A (93-100), A- (90-92), B+ (87-89), B (83-86), B- (80-82), C+ (77-79), C (73-76), C- (70-72), D+ (67-69), D (63-66), D- (60-62), F (below 60). Some schools may use slightly different cutoffs.

**Q: How do I convert a letter grade to GPA?**

A: On a standard 4.0 scale: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, D- = 0.7, F = 0.0.

**Q: What's the difference between weighted and unweighted grades?**

A: Unweighted grades treat all assignments equally. Weighted grades give more importance to assignments based on their assigned weight (e.g., a final exam worth 40% vs. homework worth 10%). Most college courses use weighted grading.

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Source: https://vastcalc.com/calculators/everyday/grade-calc
Category: Everyday Life
Last updated: 2026-04-21