How unweighted GPA works
Unweighted GPA treats every class the same. A in AP Calculus = A in regular gym = 4.0 quality points. That removes any difference in course difficulty from the formula — the only inputs are your grades and credit hours.
Unweighted GPA uses a flat 4.0 scale where every course counts equally regardless of difficulty. A=4.0, B=3.0, C=2.0, D=1.0, F=0.0. Course rigor (AP, Honors, IB) doesn't change the grade points.
- Maximum value
- 4.0
- AP class boost
- None — same as regular
- Used by
- Most US colleges, transcripts, scholarships
- Common scale variants
- Standard 4.0, plus/minus 4.0, 4.3 with A+
unweighted GPA = Σ(grade_point × credits) / Σ(credits) 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
Unweighted vs weighted — when each one matters
Most selective US colleges recalculate your GPA on an internal unweighted scale to compare students fairly across schools that weight differently. Course rigor is then judged separately from the transcript. So unweighted is the apples-to-apples number; the weighted GPA signals ambition. Some scholarships, class rank, and valedictorian calculations still use weighted, so always know both. The AP GPA Calculator and Honors GPA Calculator cover the bonus side.
What if your school uses a different scale?
Schools outside the US (and a few US programs) report grades in percentages, on a 10-point scale, or on a 100-point scale. The Percentage to GPA Converter maps any percentage to a 4.0 letter grade. If your transcript doesn't list credits at all, the GPA Calculator without Credits treats every class equally. For middle school transcripts that haven't introduced credit hours yet, the Middle School GPA Calculator uses the same simplified approach.
Common mistakes that inflate or deflate the number
- Adding AP/Honors bonuses anyway. Unweighted is unweighted — the bonus belongs only on weighted.
- Using A+ = 4.3. Most US schools cap at 4.0 even with an A+. Check your transcript legend.
- Counting pass/fail courses. Pass/no-pass classes typically don't enter the GPA.
- Mixing semester and year grades. Pick one — most schools report semester grades into GPA.
- Forgetting credit hours. A 4-credit course pulls weight twice as much as a 1-credit elective.
Source: NCES — US grading scale standards
Source: College Board — how admissions offices recalculate GPA
Source: NACAC State of College Admission — GPA importance in admissions decisions