Grade Point Calculator
Convert letter grades or percentage grades to grade points on various GPA scales. This calculator supports standard 4.0 scale, weighted 5.0 scale, 4.3 scale (A+ = 4.3), and 100-point percentage scales. Calculate quality points for individual courses or convert between different grading systems.
Select your school's GPA scale system
Only applies to weighted (5.0) scale
If you have a percentage grade instead of letter
How do I calculate grade points?
Grade points are calculated by converting your letter grade to a numerical value based on your school's scale. On a 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0. Plus grades add ~0.3, minus grades subtract ~0.3. Multiply grade points by credit hours to get quality points, then divide total quality points by total credits for GPA.
What is the difference between 4.0 and 5.0 GPA scales?
A 4.0 scale is unweighted (all courses equal). A 5.0 scale is weighted, giving extra points for harder courses: Regular courses use 4.0 scale, Honors courses add +0.5, AP/IB courses add +1.0. So an A in AP is 5.0, in Honors is 4.5, in Regular is 4.0. Weighted GPAs reward taking challenging courses.
How are plus and minus grades calculated?
On a 4.0 scale: A (4.0), A- (3.7), B+ (3.3), B (3.0), B- (2.7), C+ (2.3), C (2.0), C- (1.7), D+ (1.3), D (1.0), D- (0.7), F (0.0). Note: Some schools give A+ = 4.0, others give A+ = 4.3. The +/- typically adds/subtracts 0.3 points.
What is a weighted vs unweighted GPA?
Unweighted GPA uses a 4.0 scale where A = 4.0 regardless of course difficulty. Weighted GPA uses a 5.0 scale, giving bonus points for advanced courses (Honors, AP, IB). Colleges often recalculate to unweighted (4.0) for fair comparison, but consider course rigor separately. A 4.5 weighted GPA might be 3.8 unweighted.
How do you convert percentage grades to letter grades?
Common conversion: A+ (97-100%), A (93-96%), A- (90-92%), B+ (87-89%), B (83-86%), B- (80-82%), C+ (77-79%), C (73-76%), C- (70-72%), D+ (67-69%), D (63-66%), D- (60-62%), F (below 60%). However, schools vary - some use 90+ for A, others 93+. Check your school's specific grading scale.
What are quality points in GPA calculation?
Quality points = Grade Point × Credit Hours. Example: A (4.0) in a 3-credit course = 12 quality points. B+ (3.3) in a 4-credit course = 13.2 quality points. GPA = Total Quality Points ÷ Total Credit Hours. Quality points give more weight to courses with more credits.
Do colleges look at weighted or unweighted GPA?
Most selective colleges recalculate your GPA to their own scale (usually unweighted 4.0) for fair comparison. However, they consider course rigor separately - taking AP/IB/Honors courses matters even if your unweighted GPA is the same. Some state schools use weighted GPA for admission. Always report both if asked.