AP/IB Impact Calculator — Weighted vs Unweighted GPA Impact
Advanced coursework can change how your transcript reads to you—and sometimes to colleges—but only within the rules your school sets. This calculator helps you compare a weighted GPA (where AP/IB or honors may earn extra points) with an unweighted GPA (typically capped at 4.0 for A work).
Use it when choosing next year’s schedule, estimating scholarship eligibility, or explaining rigor on applications. Remember: many colleges recalculate GPA internally, so treat this as a planning aid aligned with your local scale, not a universal “admissions GPA.”
If your school uses half-point honors weights or caps the number of weighted classes, mirror those choices in your entries so the side-by-side comparison stays realistic.
Quick Answer:
AP and IB courses often use a 5.0 scale (A = 5.0) while regular courses use 4.0. Weighted GPA includes that boost; unweighted caps at 4.0. Add your courses and mark which are AP/IB to compare both GPAs side by side.
AP/IB Impact Calculator
See how AP and IB courses affect your weighted vs unweighted GPA
Unweighted GPA
Standard 4.0 scale
Weighted GPA
With AP/IB bonus points
GPA Impact Summary
GPA Boost
Weighted Credits
Total Credits
No GPA impact from current course selection.
AP/IB Courses
About AP/IB Weighting
AP Courses
- • Advanced Placement courses
- • Typically weighted +1.0 point
- • A grade becomes 5.0 instead of 4.0
- • Recognized by most colleges
IB Courses
- • International Baccalaureate courses
- • Typically weighted +1.0 point
- • Higher Level (HL) courses weighted more
- • Globally recognized program
Note: Weighting policies vary by school. Some schools use +0.5 or +1.5 point scales. Check with your school's policy for exact weighting.
How it works
Weighted GPA assigns higher point values to designated advanced courses before averaging by credits. Unweighted GPA maps letter grades to a standard scale without boosts. The calculator applies the inputs you provide; it does not know your district’s rounding or weight caps unless you reflect them in the data.
Frequently Asked Questions
How much do AP/IB courses boost my GPA?
Typically, AP and IB courses add 1.0 point to your GPA when weighted (A becomes 5.0 instead of 4.0). However, policies vary by school, so check with your institution.
What's the difference between weighted and unweighted GPA?
Unweighted GPA uses a standard 4.0 scale for all courses. Weighted GPA gives extra points for advanced courses like AP/IB, often using a 5.0+ scale.
Do colleges prefer weighted or unweighted GPA?
Colleges typically recalculate GPA using their own standards. They consider both weighted and unweighted GPAs, along with course rigor, to assess academic performance.
Do honors courses get the same weight as AP/IB?
Often no. Many schools give AP/IB a full extra point (A=5.0) and honors half a point (A=4.5). Check your school's policy for exact weighting.
What if my school doesn't weight AP/IB?
You can still use the calculator to see an unweighted GPA. Some colleges add their own weight when reviewing applications.