Percentage to GPA Calculator
Convert your percentage score to GPA on 4.0, 5.0, or 10-point scale.
Conversions are estimates. Always verify with your institution's official grading policy.
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4.0 and 10-Point Conversion Table
| Percentage | Letter | 4.0 GPA | 10-Point |
|---|---|---|---|
| 90–100% | A+ | 4.00 | 10.0 |
| 85–89% | A | 4.00 | 9.0 |
| 80–84% | A- | 3.70 | 8.5 |
| 75–79% | B+ | 3.30 | 8.0 |
| 70–74% | B | 3.00 | 7.5 |
| 65–69% | B- | 2.70 | 7.0 |
| 60–64% | C+ | 2.30 | 6.5 |
| 55–59% | C | 2.00 | 6.0 |
| 50–54% | C- | 1.70 | 5.5 |
| 45–49% | D | 1.00 | 4.5 |
| 0–44% | F | 0.00 | 0.0 |
5.0 Scale Conversion Table (Nigeria)
The 5-point scale has no plus or minus grades. Some universities no longer award E (40–44%).
| Percentage | Grade | Grade Points |
|---|---|---|
| 70–100% | A | 5.00 |
| 60–69% | B | 4.00 |
| 50–59% | C | 3.00 |
| 45–49% | D | 2.00 |
| 40–44% | E | 1.00 |
| 0–39% | F | 0.00 |
Quick Reference
- 90–100%A+ — Top marks
- 80–89%A/A- — Excellent
- 70–79%B/B+ — Very Good
- 60–69%C/B- — Average
- 50–59%C- — Pass
- Below 50%D/F — Fail risk
Disclaimer
These are standard estimates. GPA conversion thresholds vary by institution and grading policy. This tool does not represent any official conversion.
Frequently Asked Questions
The 4.0 scale is standard in the United States, Canada, and many other countries. Most US colleges and universities report GPA on this scale.
The 5.0 scale is the standard in Nigerian universities and is also used in parts of West Africa. It has no plus or minus grades: A (70–100%) = 5, B (60–69%) = 4, C (50–59%) = 3, D (45–49%) = 2, E (40–44%) = 1 and F (below 40%) = 0. Some universities no longer award E, so check your school's handbook.
The 10-point scale is used by many universities worldwide. A score of 90–100% typically corresponds to a CGPA of 9–10 on this scale, depending on the institution's conversion formula.
No. These conversions are estimates based on widely-used standard tables. Exact conversion thresholds vary by institution and country. Always verify with your school's official grading policy.
On a 4.0 scale, 75% falls in the B+ range (75–79%), which equals 3.3 GPA. On the Nigerian 5.0 scale, 75% is an A, worth 5.0. On a 10-point scale, it's 8.0.