GPA Calculator
Turn letter grades and credits into a semester GPA, a weighted or unweighted GPA for honors and AP classes, and a new cumulative GPA on the 4.0 scale.
Every convention this page applies is named in the result rather than assumed. Your numbers stay in this browser.
Results
How to read this: the verdict describes how much room your numbers leave, not a decision or an offer. Change any input to see how much the result moves.
Assumptions and formula
Each letter grade becomes points on the chosen scale, multiplied by the course’s credits to give quality points; the GPA is total quality points divided by graded credits. Pass grades earn credit but are excluded from the GPA. The weighted GPA adds 0.5 for honors and 1.0 for AP or IB to each passing grade before weighting by credits. The cumulative figure converts the previous GPA back into quality points, adds this term’s, and divides by the combined credits.
Two conventions differ between schools and are inputs here: whether an A+ is 4.0 or 4.3, and the honors and AP bonuses. Check your school’s published table before comparing a figure with one computed elsewhere. An F counts its credits at zero points and receives no weighting bonus.
Worked example
Three A grades in 3-credit courses and a C in a 4-credit lab: 3 × (4.0 × 3) + 2.0 × 4 = 44 quality points over 13 credits, a 3.38 GPA — not the 3.5 you get by averaging four grades, because the C carries more credits. Adding a 3.2 over 60 earlier credits: 192 + 44 = 236 over 73 credits, 3.23 cumulative.
Frequently asked questions
How is GPA calculated?
Each grade becomes points on the scale (A = 4.0, B = 3.0, and so on), those points are multiplied by the course’s credits to give quality points, and the total quality points are divided by the total graded credits. Three A grades in 3-credit courses and a C in a 4-credit lab is (36 + 8) ÷ 13 = 3.38, not the 3.5 you get by averaging the four grades — credits weight the harder-earned marks.
Is an A+ worth more than an A?
It depends on the school. On the standard 4.0 scale both are 4.0 and the plus is decoration. Some universities and many high schools award 4.3 for an A+, which lets a GPA exceed 4.0. This calculator offers both and names the one it used, because a 3.9 on one scale is not comparable to a 3.9 on the other.
What is a weighted GPA?
A GPA that adds a bonus for harder courses — commonly 0.5 for honors and 1.0 for AP or IB — so an A in AP Chemistry counts 5.0. Colleges usually recompute on their own scale, so quote both figures. The bonus is not applied to a failing grade here, since the weighting rewards passing the harder course.
How do pass/fail courses affect my GPA?
A pass earns the credits but contributes nothing to the GPA, so it neither raises nor lowers it. A fail in a pass/fail course is treated differently by different schools — some record it as an F at zero points. Enter it as F here if yours does. Withdrawn courses are not entered at all.
How do I work out my cumulative GPA after this semester?
Turn the old GPA back into quality points by multiplying it by the credits it covers, add this term’s quality points, and divide by the combined credits. A 3.2 over 60 credits (192 points) plus a 3.8 over 15 credits (57 points) is 249 ÷ 75 = 3.32. Averaging 3.2 and 3.8 would give 3.5 and be wrong, because the two terms are different sizes.
What is the difference between a weighted and an unweighted GPA calculator?
The scale. An unweighted GPA calculator gives every class the same 4.0 ceiling: an A is 4.0 whether the course is regular or AP. A weighted GPA calculator adds a bonus for harder courses, typically 0.5 for honors and 1.0 for AP or IB, so an A in AP Calculus counts 5.0 and the overall figure can pass 4.0. A cumulative GPA calculator then combines terms by credit hours rather than averaging the term GPAs, which matters when terms carry different loads. This page shows all three so you can quote whichever a college or scholarship asks for.
Can this work as a college GPA calculator and a high school GPA calculator?
Yes; the arithmetic is identical and only the weighting convention differs. A high school GPA calculator usually needs the weighted scale for honors and AP classes, which this page applies when you mark a course as weighted. A college GPA calculator almost always uses the plain 4.0 scale with credit hours, which is the unweighted mode. In both cases the semester GPA calculator part totals one term, and the cumulative figure combines terms by credits rather than averaging the term GPAs.