High School GPA Calculator
Add each class with its letter grade, course level and credit value, and see your unweighted GPA on the 4.0 scale next to your weighted GPA, where Honors adds 0.5 and AP or IB adds 1.0. Both update as you type. Free, no sign-up.
Your Classes
4.00
Weighted GPA
4.00
Unweighted GPA
3
Total credits
Weighted Grade Scale Reference
The most common weighting adds +0.5 for Honors and +1.0 for AP or IB courses. An F earns 0.0 at every level. Your school may use a different system — check your transcript.
| Letter grade | Regular | Honors (+0.5) | AP / IB (+1.0) |
|---|---|---|---|
| A+ | 4.0 | 4.5 | 5.0 |
| A | 4.0 | 4.5 | 5.0 |
| A- | 3.7 | 4.2 | 4.7 |
| B+ | 3.3 | 3.8 | 4.3 |
| B | 3.0 | 3.5 | 4.0 |
| B- | 2.7 | 3.2 | 3.7 |
| C+ | 2.3 | 2.8 | 3.3 |
| C | 2.0 | 2.5 | 3.0 |
| C- | 1.7 | 2.2 | 2.7 |
| D+ | 1.3 | 1.8 | 2.3 |
| D | 1.0 | 1.5 | 2.0 |
| D- | 0.7 | 1.2 | 1.7 |
| F | 0.0 | 0.0 | 0.0 |
How to Use the High School GPA Calculator
- 1. Add your classes. One row per class. Choose the letter grade and the level — Regular, Honors or AP / IB — and enter the credits. The widget starts every class at 1 credit, which suits full-year courses; use 0.5 for a semester course.
- 2. Read both GPAs. Unweighted GPA ignores course level. Weighted GPA adds the level bonus to each passing grade. The total credits sit alongside.
- 3. Compare with your transcript. Schools set their own bonuses. If yours differ from +0.5 and +1.0, the weighted figure here will not match the one on your transcript, but the unweighted one usually will.
- 4. Try a what-if. Change a grade or level to see how a single class moves each GPA.
Weighted and Unweighted GPA: the Arithmetic
Both GPAs are credit-weighted averages. The only difference is the grade points: unweighted uses the plain 4.0 scale (A = 4.0, A- = 3.7, B+ = 3.3 and so on), while weighted adds a bonus of 0.5 for Honors and 1.0 for AP or IB. A failing grade stays at 0.0 at every level.
Five classes, both GPAs
AP course, A, 1 credit: unweighted 4.0, weighted 5.0
Honors course, B+, 1 credit: unweighted 3.3, weighted 3.8
Regular course, A-, 1 credit: unweighted 3.7, weighted 3.7
Regular course, B, 0.5 credit: unweighted 3.0 × 0.5 = 1.5, weighted 1.5
AP course, C+, 1 credit: unweighted 2.3, weighted 3.3
Unweighted = 14.8 ÷ 4.5 credits = 3.29; weighted = 17.3 ÷ 4.5 = 3.84
Notice what the bonus does: the AP C+ is worth 3.3, the same as a Regular B+. Weighting rewards attempting a harder course, which is why the weighted GPA can rise above 4.0 and why it only reaches 5.0 with straight As in AP or IB classes.
Why Your Weighted GPA May Not Match Your School's
- There is no national standard. The +0.5 and +1.0 pattern is common, but some schools use +0.25 or +0.33, weight only AP, add points only for grades of C or better, or publish a 4.0 maximum even for weighted classes.
- Plus and minus rules differ. This calculator counts an A+ as 4.0 (the same as an A) and a D- as 0.7; a school that gives an A+ 4.3 will show a higher number on its transcript. Some schools do not use plus and minus grades, in which case pick the base letter.
- Credits are the school's unit. Many U.S. high schools give 1 credit for a year-long class and 0.5 for a semester, but some use different values; type what your transcript shows.
- Which classes count varies. Physical education, pass/fail and some electives may be left out of the GPA. Add only the classes your school includes.
Which GPA Tool Do You Need?
| You have | Use |
|---|---|
| High school classes with levels and credits | This High School GPA Calculator |
| College or university grades and credit hours | GPA Calculator |
| A GPA for each term, to combine | Cumulative GPA Calculator |
| A GPA to express as a percentage | GPA to Percentage Converter |
Frequently Asked Questions
- What is the difference between weighted and unweighted GPA?
- Unweighted GPA uses the standard 4.0 scale for every class, so an A is 4.0 whether the course is Regular or AP. Weighted GPA adds bonus points for harder courses — in this calculator +0.5 for Honors and +1.0 for AP or IB — so an A in an AP class counts as 5.0.
- How much does an Honors class add to my GPA?
- In the most common system, Honors adds 0.5 grade points to that course, so an A counts as 4.5 instead of 4.0. Because each class is weighted by its credits, one Honors class among five adds about 0.1 to the overall weighted GPA. Some schools use other bonuses, so check your handbook.
- Do AP and IB classes count the same?
- In the usual 5.0 weighting, yes — both AP and IB courses receive +1.0. This calculator treats them identically. A few schools weight IB Higher Level differently from Standard Level or from AP, so confirm your school's policy.
- Does a failing grade get the weighted bonus?
- No. An F is worth 0.0 grade points at every level, and the calculator adds no Honors or AP/IB bonus to it. Any passing grade, even a D, does receive the bonus here, which matches the common practice but is not universal.
- Which GPA do colleges look at?
- Practice varies. Many admissions offices recalculate applicants' GPAs on their own scale, often unweighted and sometimes limited to core academic courses, while also reading your transcript for course rigor. Report the GPA your transcript shows and know both numbers.
- How do I calculate my GPA if my school does not use plus and minus grades?
- Choose the plain letter for each class: A is 4.0, B is 3.0, C is 2.0, D is 1.0 and F is 0.0. The credit weighting and level bonuses work the same way.