Percentage to letter grade
Type a percent → see the letter. Or pick a letter → see the percent band. Defaults follow a common US ± scale; change cutoffs if your syllabus uses 90/80/70 with no minus grades.
LETTER / BAND
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Enter numbers and calculate.
When to use — and when not to
When to use
Translating an 87 into B+ vs B; checking what percent band counts as an A−; building a quick reference for a class with custom cutoffs.
When not to
You still need to compute the percent from weights — do that first on weighted grade calculator. GPA quality points across courses — wait for GPA helper pages later.
Assumptions
Default ± scale: A 93–100, A− 90–92, B+ 87–89, B 83–86, B− 80–82, C+ 77–79, C 73–76, C− 70–72, D+ 67–69, D 63–66, D− 60–62, F <60. “Simple” preset: A≥90, B≥80, C≥70, D≥60, else F.
How it works
find band where low ≤ percent < high (A includes 100) reverse: letter → [low, high] and midpoint
- Enter a percent or pick a letter.
- Choose ± or simple scale (or edit cutoffs).
- Read the letter or the percent band.
Examples
91%
A− on default ± scale (90–92)
On simple 90=A scale, 91 is A.
letter B+
band 87–89 (default)
Midpoint 88 if you need a single percent stand-in.
Gotchas
- School A− might start at 90 or 92 — edit the table.
- Pass/fail classes do not use this map.
- Percent already rounded by teacher may sit on a boundary — ask the syllabus.
- Not every country uses A–F.
Compare
Need the percent from categories first? → weighted grade calculator.
Average of scores first? → grade average calculator.
Final needed for a letter target? → final grade calculator.
Related
FAQ
Often B+ on a ± scale — confirm your syllabus.