What is the highest possible GPA you can get?
On an unweighted scale, the highest possible GPA is 4.0. On a weighted scale that awards bonuses for AP, IB, or Honors courses, the highest theoretical GPA can reach 5.0 or higher.
Key Takeaways & Data Points
- ✓Unweighted scale maximum: 4.00 (straight A/A+ marks).
- ✓Standard weighted scale maximum: 5.00 (all AP/IB coursework with straight A marks).
- ✓Colleges almost always recalculate your GPA back to an unweighted 4.0 scale.
Detailed Breakdown
In the United States, the standard academic scale is unweighted and tops out at 4.00. On this scale, an A or A+ earns 4.0 quality points. (A handful of institutions like Columbia and Cornell record an A+ as 4.33, but standard transfer applications and centralized tools like AMCAS and LSAC normalize this back to a 4.0 ceiling).
High schools that factor course difficulty use weighted GPAs. In a typical weighted 5.0 scale, standard courses cap at 4.0, Honors courses cap at 4.5, and Advanced Placement (AP) or International Baccalaureate (IB) courses cap at 5.0. If a student takes every single class as an AP or dual-enrollment college course and receives straight A marks, their weighted GPA can mathematically hit 5.0.
Some school districts even award +1.5 or +2.0 weights for dual-credit STEM classes, creating edge-case GPAs like 5.3 or 5.7. However, college admissions officers universally recalculate GPAs onto a standardized unweighted 4.0 scale to ensure fair evaluation across varying high school systems.
Calculate Your Specific Numbers
Use our specialized tools to model your exact course load and test different grading scenarios: