How to Calculate Grades: The Complete Step-by-Step Guide

Calculating grades is a fundamental skill every student needs. Whether you're trying to figure out your current standing or plan for an upcoming exam, knowing how to calculate your grade accurately can make a big difference.

The Basic Grade Formula

The simplest way to calculate a grade is:

Grade % = (Points Earned ÷ Points Possible) × 100

For example, if you scored 85 out of 100 points, your grade is 85%.

Letter Grade Scale

Most educational institutions use the following letter grade scale:

• A: 90–100%
• B: 80–89%
• C: 70–79%
• D: 60–69%
• F: Below 60%

Calculating Multiple Grades

To find your overall grade across multiple assignments, add up all your points earned and divide by total points possible:

Overall % = (Sum of All Points Earned ÷ Sum of All Points Possible) × 100

Using Our Grade Calculator

Our free Grade Calculator does all this math instantly. Simply enter your scores and it handles the rest — including weighted grades, final exam calculations, and more.

Tips for Tracking Your Grades

1. Keep a spreadsheet of all your assignments and scores
2. Update your running grade after each assignment
3. Know the weight of each assignment category
4. Calculate what score you need on upcoming assessments
5. Talk to your teacher if you're unsure about the grading scale