Test Score Calculator — Percentage & Letter Grade
Convert your exam marks to percentage and letter grade instantly. Enter total marks and marks obtained to see your score, grade, and performance level.
72.0%
Percentage Score
B
Letter Grade
Good
Remark
Grade Scale Reference
| Grade | Range | Remark |
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How to Use This Calculator
Enter the total marks available for the test and the marks you obtained. The calculator instantly shows your percentage, letter grade, and remark. You can switch grading systems to match your institution's scale.
Frequently Asked Questions
How is exam percentage calculated?
Percentage = (Marks Obtained ÷ Total Marks) × 100. For example, if you scored 72 out of 100 marks, your percentage is 72%.
What letter grade is 70%?
Under the common grading scale used in many Nigerian institutions: 70–100% is an A (Excellent), 60–69% is a B (Good), 50–59% is a C (Average), 45–49% is a D (Pass), and below 45% is F (Fail). Exact cutoffs may vary by institution.
What is the minimum pass mark in Nigerian universities?
Most Nigerian universities set the minimum pass mark at 40% for most courses, though some departments require 45% or 50%. Laboratory and clinical courses often have higher pass marks. Always check your student handbook.
Can I use this for WAEC or JAMB scores?
Yes. Enter the total marks for the exam and your obtained marks. For JAMB, total is 400; for individual WAEC subjects, each paper typically has its own total. The percentage and grade will be calculated accordingly.
What is the difference between raw score and percentage?
A raw score is the actual number of marks you earned. A percentage converts that to a 0–100 scale so scores from different exams can be compared fairly. For example, 36/40 and 90/100 both equal 90%.