Percentage to GPA Calculator
This percentage to GPA calculator converts a percent score into 4.0-scale grade points using a real grade table — not a rough formula. Choose the detailed plus/minus table colleges use or the simple straight-letter table, enter your percent, and get the GPA value, the letter it represents, and the grade points it would earn for a typical 3-credit course.
Your percent score, 0–100.
Which grade table to look the percent up in.
Credit hours, to show grade points earned.
GPA — A−
3.7
- GPA points (4.0 scale)
- 3.7
- Grade points for 3 credits3.7 × 3 credit hours.
- 11.1
How it was calculated
- 91% falls in the A− band (90%+) → 3.7 grade points.
- For a 3-credit course: 3.7 × 3 = 11.1 grade points.
How it works
There is no single formula — the conversion is a table lookup. The plus/minus table maps 97+ to A+ (4.0), 93–96 to A (4.0), 90–92 to A− (3.7), 87–89 to B+ (3.3), 83–86 to B (3.0), 80–82 to B− (2.7), 77–79 to C+ (2.3), 73–76 to C (2.0), 70–72 to C− (1.7), 67–69 to D+ (1.3), 65–66 to D (1.0), and below 65 to F (0).
The simple table uses straight bands: A for 90+, B for 80–89, C for 70–79, D for 60–69, F below 60, worth 4/3/2/1/0 points.
Grade points for a course are the looked-up value times its credit hours — the same multiplication registrars use when building a transcript GPA.
Worked examples
91% on the plus/minus table
91 falls in A− (90–92) → 3.7 grade points. For a 3-credit course that is 11.1 grade points toward the GPA numerator.
Same 91% on the simple table
91 is an A (90+) → 4.0 grade points, or 12.0 for 3 credits. The table choice alone moves this score by 0.3 GPA points — which is why the right table matters.
How to measure
- Enter the final percent for the course — after any curving — since the table assumes finished scores.
- Pick the table your institution publishes; using plus/minus when your school uses straight letters understates some scores.
- For international percentages (e.g. Indian or Pakistani boards), convert with the credential evaluator’s table, not a US table.
- Keep the credits input matched to the actual course; the grade-points row is only as true as the credit hours.
Assumptions & limitations
Planning estimate
- The plus/minus cutoffs are a common US college convention, not a universal standard — real tables vary by institution.
- A single percent maps to a single course’s grade points; averaging several courses needs the GPA or College GPA Calculator.
- Percents above 100 (extra credit) map to the top band; the table does not award more than 4.0.
- This is unweighted 4.0-scale math; honors/AP bonuses are a separate step handled by the Weighted GPA Calculator.
Frequently asked questions
Look the percent up in a grade table: on the common plus/minus table, 91% is an A− worth 3.7, while 85% is a B worth 3.0. Pick the table above and enter your percent — the calculator returns the GPA value and the grade points for your credit hours.
On the plus/minus table, 85% is a B = 3.0. On the simple table it is also a B = 3.0 (80–89). The tables mostly agree in the middle bands and diverge near the edges, like 91% (A−/3.7 vs A/4.0).
The one your school or target institution publishes. US colleges typically use a plus/minus variant; many high schools and some universities use straight letters. When converting for applications abroad, use the credential evaluator’s table.
Because real conversions are stepped, not linear: 89% and 90% can differ by 0.3–0.7 GPA points across a band boundary, while 91% and 92% are identical. A linear formula smooths over those cliffs and misstates borderline scores.
Grade points are GPA × credits for one course — the building blocks. Add every course’s grade points and divide by total credits to get the GPA. The second row here shows that multiplication for your credit value.