Percentage to Letter Grade
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Map a numeric score to A–F with editable cutoff percentages.
Score & cutoffs
Letter grade
B
87% with your cutoffs
- Score
- 87%
Related calculators
Letter grade cutoffs
Schools map percentage scores to letter grades with local cutoffs — common US defaults are A ≥ 90%, B ≥ 80%, C ≥ 70%, D ≥ 60%, F below 60. Honors weighting and plus/minus grades are not included here.
Edit the cutoff fields to match your syllabus. If your instructor uses 94/84/74/64 or a different scale, enter those thresholds instead of the defaults.
Example: score 87% with cutoffs 90/80/70/60 → letter B. Score 69% → D. Always confirm against your course policy.
Common questions
Why don't my letters match the portal?
Canvas, PowerSchool, and districts use different scales, rounding, and weighted categories. Match cutoffs to your syllabus.
Does this handle plus/minus grades?
No — output is whole letters A–F only. Add your own bands in a spreadsheet if you need A− or B+.