EZ Grade Calculator
Calculate your grade percentage from the number of correct and total questions
Weighted Average Calculator
Calculate your weighted course grade from multiple assignments with different weights
Final Exam Calculator
Find out what score you need on your final exam to achieve your target course grade
GPA Calculator
Calculate your semester or cumulative GPA from your course grades and credit hours
EZ Grades tool
EZ Grade Calculator
Calculate your grade percentage from the number of correct and total questions.
20 correct out of 20
How to calculate a test grade
Enter the number of questions on the test and the number you missed. The calculator finds your correct answers, turns them into a percentage, and shows the conventional letter-grade scale used on this page.
Find correct answers
correct = total questions − missed questions
Find the percentage
percentage = (correct ÷ total questions) × 100
Check the grade scale
Use your teacher’s scale if it differs from the one here
Example: 50 questions, 7 missed
50 − 7 = 43 correct. Then 43 ÷ 50 × 100 = 86%, which is a conventional B.
Example: 20 questions, 2 missed
20 − 2 = 18 correct. Then 18 ÷ 20 × 100 = 90%, which is a conventional A−.
A quick note about letter grades
This tool uses a common 90/80/70/60 letter-scale pattern with plus and minus grades. Your school may round differently or use weighted questions, extra credit, curves, or another grading policy. The percentage is the reliable starting point; your course syllabus is the final rule.
Frequently asked questions
How do I calculate a test grade?
Subtract missed questions from the total questions, divide the correct answers by the total, and multiply by 100. This calculator does that automatically.
How many questions can I miss and still get an A?
It depends on your school’s grading scale and the number of questions. On the conventional scale used here, an A begins at 93%, so the number of misses you can afford changes with the test length.
Why is my teacher’s grade different from this calculator?
Teachers may use a different letter scale, rounding rule, weighted questions, extra credit, dropped questions, or a curve. Check the course syllabus or ask your teacher when the result differs.
Can this calculator work out a weighted course grade or final-exam target?
For weighted course categories, use the Weighted Average Calculator. For the score needed on a final exam, use the Final Exam Calculator.