High School GPA Calculator
Enter your classes, grades and credits to see your unweighted and weighted GPA using a 4.0 base scale. Weighted results can reach 5.0 with eligible Honors and AP / IB courses.
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Calculator entries are saved in this browser. Clear them on shared computers. See our Privacy Policy for storage and website analytics details.Honors adds 0.5 and AP / IB adds 1.0 for grades C− or higher. D and F grades receive no bonus. Check your school's rules.
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Enter valid grades or term GPAs and GPA credits to see the calculation. Only rows included in your GPA appear here.
Enter valid grades and credits to print your results.
Calculator results are estimates based on your inputs and the grading conventions described on each page. Schools may use different rules for weighting, repeated courses, transfer credits, and rounding. Your school or registrar determines your official GPA.
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How to Use the High School GPA Calculator
- Type a course name — optional, but it makes the saved list easier to read.
- Pick the letter grade you earned.
- Enter the credit value assigned by your school. Some schools use 1 credit for a full-year course and 0.5 for a semester course, while others use different systems. Check your transcript or school handbook for accurate values.
- Choose Regular, Honors or AP / IB. The weighted GPA updates as you go. Use + Add course for anything past the first four rows.
How the Calculation Works
GPA is a credit-weighted average, not a plain average of your grades. Each course earns quality points (grade points × credits); the total is divided by total credits:
GPA = Σ (grade points × credits) ÷ Σ credits
That is why a B in a two-credit course pulls the average more than a B in a half-credit elective.
High School GPA Scale: Letter Grades, Percentages, 4.0 Values
| Letter | Percentage | Regular | Honors | AP / IB |
|---|---|---|---|---|
| A+ / A | 93–100 | 4.0 | 4.5 | 5 |
| A− | 90–92 | 3.7 | 4.2 | 4.7 |
| B+ | 87–89 | 3.3 | 3.8 | 4.3 |
| B | 83–86 | 3.0 | 3.5 | 4 |
| B− | 80–82 | 2.7 | 3.2 | 3.7 |
| C+ | 77–79 | 2.3 | 2.8 | 3.3 |
| C | 73–76 | 2.0 | 2.5 | 3 |
| C− | 70–72 | 1.7 | 2.2 | 2.7 |
| D+ | 67–69 | 1.3 | — | — |
| D | 63–66 | 1.0 | — | — |
| D− | 60–62 | 0.7 | — | — |
| F | 0–59 | 0.0 | — | — |
This is the scale used by this calculator. Your school's cutoffs may differ — check your student handbook. A dash for D or F means no bonus; use the Regular value for those grades.
Weighted vs Unweighted High School GPA
Unweighted GPA caps every course at 4.0. Weighted GPA gives extra points for harder courses, so a student who takes Honors and AP classes can finish above 4.0. Colleges see both: many recalculate your GPA on their own scale using your transcript, so the number here is a working estimate rather than the figure an admissions office will use.
Honors and AP Weighting: What Changes
This calculator uses +0.5 for Honors and +1.0 for AP or IB for grades C− or higher. D and F grades receive no bonus. Bonuses are applied before credits are multiplied in. A B+ (3.3) in an Honors class counts as 3.8 weighted; the same B+ in an AP class counts as 4.3.
Two Worked Examples
Example A — Unweighted
| Course | Grade | Points | Credits | Points × Credits |
|---|---|---|---|---|
| English | A | 4.0 | 1 | 4.0 |
| Algebra II | B+ | 3.3 | 1 | 3.3 |
| Chemistry | A− | 3.7 | 1 | 3.7 |
| US History | A | 4.0 | 1 | 4.0 |
| Spanish | B | 3.0 | 1 | 3.0 |
| PE | A | 4.0 | 1 | 4.0 |
22.0 ÷ 6 credits = 3.67
Example B — the same six courses, two of them Honors
| Course | Grade | Points |
|---|---|---|
| Algebra II (Honors) | B+ | 3.8 |
| Chemistry (Honors) | A− | 4.2 |
| English | A | 4.0 |
| US History | A | 4.0 |
| Spanish | B | 3.0 |
| PE | A | 4.0 |
23.0 ÷ 6 credits = 3.83. Same courses, same grades — the weighted result is 3.83 against 3.67 unweighted, purely from course level.
How to Interpret Your High School GPA
The ranges below describe unweighted averages on this calculator's 4.0 scale. They do not identify a unique mix of course grades or predict college admission.
| Unweighted GPA (4.0 scale) | Grade-point interpretation |
|---|---|
| 3.8 – 4.0 | Near the A / A+ grade-point value of 4.0; above the A− value of 3.7. |
| 3.5 – 3.79 | Between B+ (3.3) and A (4.0), including the A− grade-point value of 3.7. |
| 3.0 – 3.49 | From the B value of 3.0 to an average above B+ (3.3) and below A− (3.7). |
| 2.5 – 2.99 | Between C+ (2.3) and B (3.0), including the B− grade-point value of 2.7. |
| Below 2.5 | Below the midpoint between C+ (2.3) and B− (2.7). Review individual grades and GPA credits to understand the average. |
Unweighted GPA uses letter-grade points without course-level bonuses and cannot exceed 4.0 on this scale. Weighted GPA adds eligible Honors and AP / IB bonuses and can exceed 4.0; do not compare it directly with these ranges. Colleges evaluate GPA using their own rules alongside course rigor, school context, intended major and other application information.
Learn how colleges calculate GPA using course grades and credit hours.
Semester and Cumulative GPA
Your semester GPA covers one term; cumulative GPA averages every term you have completed, credits included. To keep the two straight, see the semester GPA and the cumulative GPA.
Frequently Asked Questions
How do I calculate my GPA for high school?
Multiply each course's grade points by its credits, add those products together, then divide by your total credits. On the standard 4.0 scale an A is 4.0, a B is 3.0 and a C is 2.0. Six one-credit courses graded A, B+, A−, A, B and A come out to 22.0 ÷ 6 = 3.67.
Is a 3.7 GPA an A or B?
On this calculator’s 4.0 scale, an A− is worth 3.7 grade points. However, a cumulative GPA of 3.7 is an average across multiple courses and can result from different combinations of grades.
Is a 2.7 GPA bad in high school?
On a common 4.0 grading scale, a B− is worth 2.7 grade points. A cumulative GPA of 2.7 is a credit-weighted average that can come from many different combinations of course grades; it does not mean every course grade was B−. Whether it meets your goals depends on your school's rules and the requirements of specific programs. GPA alone does not determine college admission. To plan improvement, use your completed and remaining GPA credits in the cumulative calculator.
Is 75% a 3.0 GPA?
No. 75% usually falls in the C range, which is 2.0 on the 4.0 scale. A 3.0 is a B, roughly 83–86%. The two numbers are often confused because some schools report a 75 average and a 3.0 side by side using different scales.
Weighted vs unweighted GPA — what's the difference?
Unweighted GPA caps every course at 4.0 no matter how hard it is. This calculator adds +0.5 for Honors and +1.0 for AP or IB on grades C− or higher; D and F receive no bonus. The same six courses in our worked examples score 3.67 unweighted and 3.83 weighted, because two of them were Honors classes.
Should I use 1 credit per class?
Only use 1 credit when that is the value your school assigns to the course. Some schools use 1 credit for a full-year course and 0.5 for a semester course, while others use different systems. Enter the GPA credit value shown on your transcript or in your school handbook for each included course; do not assume all courses carry the same credit.
My school uses a 5.0 scale. Can I use this calculator?
Only if its rules match this calculator: a 4.0 base scale, +0.5 for Honors and +1.0 for AP / IB on grades C− or higher, with no bonus for D or F. An A in AP / IB is then 5.0. A flat scale where every A is 5.0, different bonuses or school-specific caps is not supported. Check your school's policy before using the result.
Does GPA include electives, PE, and art?
Usually yes, because they carry credit and count toward graduation. Some districts exclude PE or give it pass/fail, and a few calculate a separate academic GPA for college applications. Your student handbook is the final word.