Letter Grade to GPA Converter
Look up GPA values for any letter grade across different scales. Select a grade or type one to convert instantly.
Complete GPA Conversion Table
| Letter | Percent | Standard 4.0 | A+=4.33 | Weighted (Reg) | Weighted (Honors) | Weighted (AP/IB) | AMCAS |
|---|
How Letter Grades Convert to GPA
In the US 4.0 system, each letter grade maps to a set number of grade points. The standard mapping (used by most colleges) treats A and A+ identically at 4.0, with minus grades losing 0.3 and plus grades gaining 0.3.
A+ = 4.0 vs A+ = 4.33
Some schools award A+ = 4.33 to distinguish exceptional performance. AMCAS (medical school applications) always uses A+ = A = 4.0. Learn more about AMCAS rules →
Weighted GPA Scale
Weighted GPAs add bonus points for course difficulty: typically +0.5 for Honors and +1.0 for AP/IB. An A in AP Chemistry = 5.0 on a weighted scale. Weighted vs unweighted guide →
Need Extra Help with Your Grades?
Explore curated academic resources, tutoring, and study tools to boost your GPA.
Explore Resources