Percentage to Letter Grade Calculator
Finds the letter grade for a percentage on a scale you can edit.
Letter grade
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Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Points to the next letter up —
Scale used
Reading this —
The formula
grade = the highest band whose cut-off the percentage reaches
With plus and minus on, each band is split: bottom 30% minus, middle 40% plain, top 30% plus. That gives 80, 83 and 87 for B on the default scale.
What to watch out for
Check the cut-offs in your syllabus or handbook. Schools and countries differ, and some round up before applying them.
Frequently Asked Questions
What letter grade is an 86?
On the default scale here it is B. Another school’s scale may call it something else.
Is 90% always an A?
No. It is a common cut-off, but some schools start an A at 93% or 85%, and many countries use different grades altogether.