Type any number grade or GPA to convert it instantly — including GPAs reported on a 5.0, 7.0, 9.0, 10.0, or 100-point scale.
| Letter | GPA | Standard scale | Alternate scale |
|---|---|---|---|
| A | 4.0 | 93–100% | 90–100% |
| A− | 3.7 | 90–92% | — |
| B+ | 3.3 | 87–89% | — |
| B | 3.0 | 83–86% | 80–89% |
| C | 2.0 | 73–76% | 70–79% |
| D | 1.0 | 63–66% | 60–69% |
| F | 0.0 | Below 60% | Below 60% |
The "standard" scale (93/90/87/83...) with plus/minus grading is the most common convention at US colleges and many high schools. The "alternate" scale (90/80/70/60, whole letters only) is common at schools that don't use plus/minus grading. Your course syllabus is always the final word on which one applies to you.
Many countries and some US graduate programs report GPA on scales other than 4.0 — commonly 5.0, 7.0, 9.0, 10.0, or a straight 100-point average. The standard method US institutions use to interpret these is proportional scaling: divide your GPA by its maximum possible value, then multiply by 4.0.
| Original scale | Formula | Example |
|---|---|---|
| 5.0 scale | GPA ÷ 5 × 4.0 | 4.2 → 3.36 |
| 7.0 scale | GPA ÷ 7 × 4.0 | 5.7 → 3.26 |
| 9.0 scale | GPA ÷ 9 × 4.0 | 7.2 → 3.2 |
| 10.0 scale | GPA ÷ 10 × 4.0 | 8.2 → 3.28 |
| 100-point scale | Score ÷ 100 × 4.0 | 85 → 3.4 |
This proportional formula is a widely used approximation, but it isn't universal — some US graduate schools and credential evaluation services (like WES or ECE) apply their own conversion tables rather than a straight proportional scale, especially for international transcripts. If you're submitting a GPA for a specific application (graduate school, transfer, employer), check whether that institution requires an official credential evaluation rather than a self-calculated conversion.
Searches like "90 to GPA" or "87 to GPA" are common because the honest answer is "it depends on your school's breakpoints" rather than a single fixed number. A 90% is an A− (3.7) under the standard scale used by most US colleges, but a straight A (4.0) under schools that set their A cutoff at 90 instead of 93. Both are correct depending on which convention your school uses — which is exactly why this tool lets you toggle between the two most common conventions rather than assuming one is universally right.
What is 90 in GPA? Under the standard US breakpoints, a 90% typically converts to an A− (3.7 GPA). Under the alternate 90/80/70/60 breakpoint scale used by some schools, 90% would be the bottom of the A range (4.0). Check your syllabus to see which breakpoint scale your class uses.
What is 87 as a GPA? Under the standard breakpoint scale, 87% typically converts to a B+ (3.3 GPA). Under the alternate scale, 87% falls in the B range (3.0).
How do I convert a 10-point or 9-point GPA scale to 4.0? Use the formula: (your GPA ÷ your scale's maximum) × 4.0. For example, a 7.25 on a 10-point scale converts to (7.25 ÷ 10) × 4.0 = 2.9. This proportional method is the most common approach US institutions use when evaluating GPAs reported on non-4.0 scales, though some schools use their own conversion tables instead — check with the receiving school's admissions or registrar office for official conversions.
Is a 3.5 GPA the same as 87.5%? Not exactly. A 3.5 GPA doesn't map to a single percentage — it typically reflects a mix of grades (some A's, some B+'s) rather than one uniform score. If you're converting a single percentage grade, use the calculator above; if you're converting an already-averaged GPA, treat any percentage equivalent as an approximation only.
Why do my percentage and GPA not match what this tool shows? Percentage-to-letter breakpoints vary by school and even by individual instructor — some use 93/90/87/83 as A/A−/B+/B cutoffs, others use 90/80/70/60. This tool shows the two most common breakpoint conventions, but your actual syllabus grading scale is always the authoritative source for your specific class.
GPA to Letter Grade Converter — convert a letter grade to GPA, or GPA to letter.
GPA Calculator — calculate your cumulative GPA from all your grades.
IB GPA Calculator — convert IB's 1–7 scale to US GPA.
Glossary — definitions for GPA and financial aid terms.