GPA Calculator
GPA is the credit-weighted average of grade points: these five courses give an unweighted GPA of 3.556.
Letter grade, then credits (1 if left out), then AP, IB or Honors for weighted GPA.
3.55555555555556
Full answer, then cut to fewer decimals (not rounded):
- 3.55555555555556
- 3.5555555555555
- 3.555555555555
- 3.55555555555
- 3.5555555555
- 3.555555555
- 3.55555555
- 3.5555555
- 3.555555
- 3.55555
- 3.5555
- 3.555
- 3.55
- 3.5
- Weighted GPA
- 3.889
- Total credits
- 4.5
- Quality points (unweighted)
- 16
| Grade | Credits | Type | Points | Weighted points |
|---|---|---|---|---|
| A | 1 | AP | 4 | 5 |
| A- | 1 | — | 3.7 | 3.7 |
| B+ | 1 | HONORS | 3.3 | 3.8 |
| A | 0.5 | — | 4 | 4 |
| B | 1 | — | 3 | 3 |
Step-by-step solution
- GPA = Σ(grade points × credits) ÷ Σ credits
- Unweighted: 16 ÷ 4.5 = 3.556
- Weighted (AP/IB +1, Honors +0.5): 17.5 ÷ 4.5 = 3.889
GPA Formula
GPA = Σ(grade points × credits) ÷ Σ credits
A = 4.0, A− = 3.7, B+ = 3.3 … F = 0; AP/IB +1, Honors +0.5 for weighted
Worked Example
Grades A (AP), A−, B+ (Honors), A (half credit) and B:
- GPA = Σ(grade points × credits) ÷ Σ credits
- Unweighted: 16 ÷ 4.5 = 3.556
- Weighted (AP/IB +1, Honors +0.5): 17.5 ÷ 4.5 = 3.889
Total credits: 4.5 · Quality points (unweighted): 16
| Grade | Credits | Type | Points | Weighted points |
|---|---|---|---|---|
| A | 1 | AP | 4 | 5 |
| A- | 1 | — | 3.7 | 3.7 |
| B+ | 1 | HONORS | 3.3 | 3.8 |
| A | 0.5 | — | 4 | 4 |
| B | 1 | — | 3 | 3 |
Scales vary by school
This calculator uses the common 4.0 scale with A+ counted as 4.0. Some schools give A+ 4.3 or use different weighting; change the AP and Honors values above to match your school’s policy.
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Frequently asked questions
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses the 4.0 scale for every class; weighted GPA adds points for harder classes (commonly +1 for AP or IB and +0.5 for Honors), so it can exceed 4.0.
Do colleges recalculate GPA?
Many do, often using core academic courses only and their own weighting, so your school’s GPA and a college’s version can differ.
Sources
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). GPA Calculator. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/gpa-calculator/
IEEE
Scientific Converters, "GPA Calculator," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/gpa-calculator/