Letter grade calculator
Focused on the scale itself: type a percent to see the letter, or think in letters and read the band. Defaults use common ± cutoffs; switch to simple 90/80/70 when your school does.
LETTER / BAND
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Enter numbers and calculate.
When to use — and when not to
When to use
Translating 87% into B+ vs B; building a target percent for the final tools; comparing two syllabus scales.
When not to
You need needed-on-final math — final grade calculator. GPA points — GPA pages.
Assumptions
Editable scale. School policies (round-up, mastery) not modeled.
How it works
letter = first band where low ≤ percent ≤ high
- Pick ± or simple scale.
- Enter a percent.
- Read letter and band.
Examples
89% on ± scale
B+ (87–89) — confirm if your school rounds 89.5 up to A−
89% on simple scale
B (80–89)
Gotchas
- Nursing / major courses may require a C or higher that is not 70.
- Some professors publish weird bands (A starts at 94).
- Letter ≠ GPA points until you map them on a GPA page.
Compare
Percent-first SEO twin? Percentage to letter grade. After you pick a target, use a final tool.
See also: percentage to letter grade, final grade calculator, and unweighted gpa calculator.
Related
FAQ
Often 83–86 with ±, or 80–89 simple — set the scale to match.