Grade Calculator
Convert a percentage or score to a letter grade online for free, using grade cutoffs you set to match your own institution's scale. Runs entirely in your browser — nothing you enter is uploaded.
Default cutoffs are common examples, not a universal standard — set them to match your institution's actual grading scale.
How to use grade calculator
- Enter your score
As a percentage.
- Set your grading scale
The percentage cutoffs for each grade band, from your institution's actual scale.
- Calculate
See which grade band your score falls into.
Features
Calculates locally with no sign-up or server request.
Explains where the calculation genuinely varies by institution instead of pretending one formula fits everyone.
Your marks and attendance data are never uploaded.
Supported formats and limitations
Text and structured input supported by this tool.
Use cases include personal workflows, content preparation, and quick checks. Review output before relying on it for legal, financial, accessibility, or production decisions.
Frequently asked questions
Why do I have to set my own cutoffs?
Grading scales genuinely differ between schools, boards and universities — there's no single correct set of cutoffs to hard-code.
What's a typical Indian grading scale?
Many CBSE-affiliated schools use A1/A2 (91-100), B1/B2, and so on down to E — but state boards and universities each set their own bands, so always confirm yours before relying on this for anything official.