Weighted to Unweighted GPA Converter

Most report cards show one GPA, but scholarship forms, college portals and sports eligibility rules sometimes ask for the other one. This converter goes both ways: a fast estimate when you only know your GPA and how many advanced classes you took, and an exact calculation when you have your grades.

The weighted to unweighted GPA formula

A weighted GPA is your unweighted GPA plus the average bonus per class. When every class carries the same credit, the bonus spreads evenly, so you can remove it in one step:

Unweighted ≈ Weighted − (H × honors bonus + A × AP bonus) ÷ N

H is the number of honors classes, A the number of AP, IB or dual-enrollment classes, and N your total classes. With the common bonuses of 0.5 and 1.0:

Worked example: a 4.10 weighted GPA, 24 classes, 6 honors and 5 AP. The total bonus is 6 × 0.5 + 5 × 1.0 = 8 points. Spread over 24 classes, that is 8 ÷ 24 = 0.33. So the unweighted GPA is about 4.10 − 0.33 = 3.77.

Going the other way, add instead of subtract. An unweighted 3.60 with 4 honors and 6 AP classes out of 28 becomes 3.60 + 8 ÷ 28 = 3.89 weighted.

The converter shows this formula with your own numbers under the result, so you can check the arithmetic or copy it into a form.

Class by class: the exact conversion

The exact method removes the bonus from each weighted grade, then averages the points by credits. Switch to Class by class and enter a letter or percent, the level and the credits for each class. The tool opens with this sample schedule:

Table: Sample schedule converted class by class (common +0.5 / +1.0 weighting)

Multiply each point value by its credits and add: unweighted 23.15, weighted 26.15. Divide both by 6.5 credits: 3.56 unweighted and 4.02 weighted. The quick formula would give 4.02 − 3 ÷ 7 = 3.59 here, slightly off, because the half-credit class breaks the equal-credit assumption.

Percents convert with the site’s plus/minus scale (93+ A, 90–92 A−, 87–89 B+). If your school uses another scale, convert with the percent to GPA converter first and type the letter.

How much does one honors or AP class change your GPA?

One weighted class moves your overall GPA by its bonus divided by your total classes. That is why a single AP class rarely changes the weighted number much, while a full schedule of them does. With the common +0.5 and +1.0 bonuses and equal-credit classes:

Table: Gap between weighted and unweighted GPA by number of weighted classes (24 classes total)

Read it backwards to convert: if your weighted GPA is 4.00 and 8 of your 24 classes were AP, your unweighted GPA is about 4.00 − 0.33 = 3.67. The bottom row shows the ceiling: a student who took every class at AP level with straight A’s would have a 5.00 weighted and a 4.00 unweighted GPA.

Twenty-four classes is four years of a six-class schedule counted as year-long courses. If your school counts each semester separately, double every number in the first column and in N, and the gaps stay the same.

When the quick estimate goes wrong

The shortcut is reliable only when its assumptions hold. Use this table to spot the problem:

The bonus values matter most. A school that gives +1.0 for honors instead of +0.5 would make the same 4.10 weighted GPA a 3.64 unweighted (4.10 − 11 ÷ 24), not 3.77. Set the honors and AP bonus to your handbook’s numbers before you trust the result.

Why you might need the other GPA

Different readers ask for different versions, and colleges often build their own. Some schools report only weighted GPA, while a scholarship or program asks for unweighted on a 4.0 scale. Converting lets you answer honestly without guessing.

Colleges may ignore both of your school’s numbers. The University of Georgia recalculates a GPA for every first-year applicant from core academic courses, adds the equivalent of one letter grade for AP and IB grades, and adds no weight for honors or dual enrollment (UGA first-year criteria↗). The University of California counts only 10th and 11th grade A-G courses, drops pluses and minuses, and adds one point per approved honors-level semester, up to 8 (UC GPA requirement↗). The same transcript can produce three different “weighted” numbers.

For what each version means and how schools weight classes, read weighted vs unweighted GPA explained. To calculate several semesters at once, use the high school GPA calculator; to project next term, the cumulative GPA calculator. Wondering what your GPA means as a letter or percent? See the GPA scale chart.