Letter Grade to GPA Calculator
Convert a letter grade to grade points on the 4.0 scale.
Change the values and press Calculate to work out your own figures.
Choose a letter grade.
Show the working
- Plus and minus are ± 0.3 of a point (A+ 4.30)
How to use it
Choose a letter grade.
Grades can be letters (A+ to F, P or NP for pass/no pass) or percentages (0 to 100). Show the working gives the formula with your numbers.
Key facts
points = 4 (A), 3 (B), 2 (C), 1 (D), 0 (F), ± 0.3 or ⅓ for plus and minus
Grade scales
Letters are worth 4 points for A, 3 for B, 2 for C, 1 for D and 0 for F. Plus and minus move a grade by 0.3 on the one-decimal scale (A− = 3.7) or by a third on the thirds scale (A− = 3.67); pick the one your school uses.
Pass/no-pass courses are left out of the GPA, as most schools do; their credits are listed separately.
Letter grades, points and percentages
| Letter | One-decimal scale | Thirds scale | Typical percentage |
|---|---|---|---|
| A+ | 4.30 | 4.33 | 97–100% |
| A | 4.00 | 4.00 | 93–96% |
| A− | 3.70 | 3.67 | 90–92% |
| B+ | 3.30 | 3.33 | 87–89% |
| B | 3.00 | 3.00 | 83–86% |
| B− | 2.70 | 2.67 | 80–82% |
| C+ | 2.30 | 2.33 | 77–79% |
| C | 2.00 | 2.00 | 73–76% |
| C− | 1.70 | 1.67 | 70–72% |
| D+ | 1.30 | 1.33 | 67–69% |
| D | 1.00 | 1.00 | 63–66% |
| D− | 0.70 | 0.67 | 60–62% |
| F | 0.00 | 0.00 | below 60% |
Questions
How many points is a B+?
3.3, or 3.33 on the thirds scale.
Formulas
points = 4 (A), 3 (B), 2 (C), 1 (D), 0 (F), ± 0.3 or ⅓ for plus and minus
Sources
Limitations
- Letter-grade points follow the common US 4.0 scale; schools differ, so check your own school's table.
- Percentage bands for letters are the common 97/93/90 … 60 cut-offs.
- Weighted GPAs add 0.5 for honors and 1 for AP, IB and college courses; some schools use other bonuses.
- At most 50 rows.