Score to Grade Converter

Introduction

A raw 82 means very different things out of 100 and out of 120, and grade boundaries vary between schools. This page first normalises the raw score to a percentage, then applies four cut-offs you supply to produce a letter grade, GPA points and the raw-point gap to the A line.

The example scores 82 out of 100 with cut-offs of 90, 80, 70 and 60. Eighty-two percent sits above B but below A, so the grade is B with 3.0 GPA points, 8 raw points short of an A, and a pass. Change full marks to 120 and 82 becomes 68.33 percent, dropping the grade to D.

The four cut-offs must decrease strictly; the page rejects anything else, because overlapping bands would let a higher grade swallow a lower one.

Key features

• Four cut-offs: A, B, C and D boundaries are entered as shares of full marks, highest first.
• Grade and points: The letter grade and its grade point come together. Schools may weight them differently.
• Scaled score: The raw score is scaled to 100 before the boundaries are applied.
• Above the line: Above A reads as "5.00 above A" instead of showing a negative gap.
• Separate pass: The pass line has its own field and is not confused with the D boundary.
• A-line score: The tool also gives the raw score needed to reach A, which is useful when setting a target.

How to use it

1. Raw score: Enter the marks on the paper. There is no need to convert them to a percentage first.
2. Full marks: Enter the total for this paper; a 150-mark exam and a 100-mark exam cannot share one set of boundaries.
3. A cut-off, B cut-off, C cut-off, D cut-off: Fill the school boundaries from highest to lowest. Out-of-order lines shift the grade band.
4. Check the scale: Keep the four boundaries on the same scale as full marks. If yours are percentages, convert them to paper marks first.
5. Read the grade: Press Calculate for the percentage and grade, then the GPA points and the gap to the A line. Above the A line the gap is stated as points above, never a negative number.

Things to keep in mind

• Four boundaries: Enter A/B/C/D boundaries as percentages of full marks, highest first.
• Above the A line: Above the A line reads as "above" rather than a negative gap.
• Grade points: Grade points follow a built-in table that may differ by school.
• Pass line: The pass line is separate from the D boundary.
• Changing full marks: Changing full marks means refilling all four boundaries.

Grade points come from a built-in mapping, and schools differ on both the boundaries and the point scale. Use the published scale for your own institution if it differs. The pass decision uses its own line rather than the D boundary, so a score can clear one and miss the other; both are printed so you can see which rule applied.

Suppose the paper is out of 150 and your score is 128. The percentage and the grade come from that ratio, while the gap to the A line is reported in paper marks. Convert the four boundaries to the same 150-mark scale before entering them, otherwise the pass decision and the grade band will disagree.