What Is a Grade Calculator?
A grade calculator converts a percentage or marks obtained into a letter grade, based on a standard grading scale — useful as a quick test grade calculator, exam grade calculator, or class grade calculator when you just need to check where a single score stands. If you need to combine several assignments, quizzes, and exams into one overall score, our Marks Calculator covers weighted categories and final-grade scenarios.
Percentage to Letter Grade Chart & GPA
Pick the scale above that matches your school or country, or use the reference tables below. The US Standard Scale is the default here and matches the scale used on our Marks Calculator, so results stay consistent across the site.
US Standard Scale (4.0) — Default
Simple Scale (5-Tier)
UK Honours Classification
Pakistan / HEC Scale
India Scale (CBSE-Style)
Common Grading Scales by Country
Grading scales aren't universal — the same 85% can be an A on one scale and a B or B- on another, which is exactly why this calculator lets you pick a scale instead of assuming one fits everyone. The US scale above is a typical college 4.0 breakdown, the UK scale reflects honours-degree classifications, and the Pakistan/HEC and India scales follow common grading conventions used by universities and boards in those regions. Individual institutions can still set their own exact cutoffs, so treat these as a close reference rather than an official record.
How Does This Calculator Work?
Pick a Source & Scale
Choose to calculate from percentage or marks, and pick the grading scale that matches your school.
Enter Your Value
Type your percentage, or your obtained and total marks.
Get Your Grade
Instantly see your letter grade, classification, or grade points.
Calculating Weighted or Final Grades
This page is built for a quick single-score lookup — enter one percentage or one set of marks and get a grade back immediately. If your grade depends on several weighted categories (homework, quizzes, exams) or you need to work out the score you still need on a final exam, that's a different calculation. Our Marks Calculator is built specifically for weighted grades and final-grade-needed scenarios, so the two tools cover different jobs instead of duplicating each other.
How to Improve Your Grade
- Identify which category (assignments, quizzes, exams) carries the most weight in your final grade, and prioritize studying there.
- Recalculate your grade after each new score using this tool, so you always know where you stand rather than guessing.
- If you're close to a grade boundary, ask your instructor which upcoming assignments have the most influence on tipping you over.
- Use the Marks Calculator's "final grade needed" mode to see exactly what score you need on a remaining exam.
- Track your overall GPA or CGPA periodically, not just individual test grades, since that's usually what matters for transcripts and applications.
Frequently Asked Questions
Your percentage is compared against the ranges of whichever grading scale you select above (US, Simple, UK, Pakistan/HEC, or India) to find the matching letter grade or classification.
Yes. Switch to "Marks", enter your obtained and total marks, and the calculator works out the percentage and grade together.
Choose the scale that matches your school or country: the US 4.0 scale (default), a simple 5-tier scale, the UK honours classification, the Pakistan/HEC scale, or India's CBSE-style scale. Always check your institution's official grading policy, since exact cutoffs can vary even within the same country.
Yes. The calculator can be used online without creating an account.
On the US scale, 90% falls in the A- range (3.7 grade points). On the Simple scale it's an A+, and on the Pakistan/HEC scale it's an A. Use the scale selector above to see the exact result for your grading system.
On the US scale, 75% is a C (2.0 grade points). On the UK scale it falls in the Upper Second (2:1) band. The result depends on which grading scale your school uses, so check the chart above.
A test grade calculator (or exam grade calculator) quickly turns a raw test score into its equivalent letter grade, for example converting 42 out of 50 into a percentage and grade. Switch to "Marks" mode above, enter your obtained and total marks, and get the result instantly.
For a single test or exam, switch to Marks mode and enter your obtained and total marks. For an overall class grade built from several assignments with different weights, use the Marks Calculator, which supports weighted categories.
This tool converts one percentage or marks entry into a grade, so it's best for a single test or assignment. To calculate your overall semester GPA across multiple courses, use the GPA Calculator instead.
This calculator handles a quick single-score conversion, not weighted categories or a final-grade-needed calculation. For that, use the Marks Calculator, which includes weighted grade and final grade needed modes.
Yes — the underlying math matches what Canvas and most learning management systems use: obtained marks divided by total marks, expressed as a percentage, then matched to a grade. Switch to "Marks" mode and enter your numbers.
A grade average reflects performance on a single score, while GPA is a weighted average of grade points across multiple courses and credit hours. For a full grade point average or CGPA, use the GPA Calculator or CGPA Calculator.