How to calculate GPA
Your GPA (grade point average) is a weighted average of your grades, where each class contributes based on its credit hours. The formula is:
GPA = Σ(credits × grade points) ÷ Σ(credits)
Each letter grade converts to a point value on the 4.0 scale. Multiply each grade's points by its credit hours, sum them up, then divide by total credits.
Example
- Math 101 (3 credits) — A = 4.0 × 3 = 12.0
- English 102 (4 credits) — B+ = 3.3 × 4 = 13.2
- History 201 (3 credits) — B = 3.0 × 3 = 9.0
- Biology 105 (4 credits) — A- = 3.7 × 4 = 14.8
Total: 49.0 points ÷ 14 credits = 3.50 GPA
GPA scale chart
This is the standard 4.0 GPA scale used by most US colleges, with the weighted scales used in high schools for honors and AP classes.
| Letter | Percent | Standard | Honors | AP / IB |
|---|---|---|---|---|
| A+ | 97–100 | 4.0 | 4.5 | 5.0 |
| A | 93–96 | 4.0 | 4.5 | 5.0 |
| 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 | 4.0 |
| 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 | 3.0 |
| C- | 70–72 | 1.7 | 2.2 | 2.7 |
| D+ | 67–69 | 1.3 | 1.8 | 2.3 |
| D | 63–66 | 1.0 | 1.5 | 2.0 |
| D- | 60–62 | 0.7 | 1.2 | 1.7 |
| F | 0–59 | 0.0 | 0.0 | 0.0 |
What is a good GPA?
What counts as a "good" GPA depends on context — your school, your major, and your goals. As general benchmarks on the unweighted 4.0 scale:
3.5+ — Excellent
Dean's list territory. Competitive for most grad schools, scholarships, and top employers.
3.0–3.49 — Good
Solid B average. Meets minimum for most graduate programs and professional jobs.
2.5–2.99 — Average
C+ average. Graduating is on track but selective opportunities may be limited.
Below 2.0 — At risk
Below academic good standing. May trigger probation or loss of financial aid.
College vs high school GPA
Both use the 4.0 scale, but there are key differences:
High school GPA
- Often weighted: AP = 5.0, Honors = 4.5
- Can exceed 4.0 on weighted scales
- Grades count by course (not credits)
- Colleges usually recalculate using their own scale
College GPA
- Standard unweighted 4.0 scale
- Grades weighted by credit hours
- 4.0 = maximum (usually)
- Grad schools, employers, and honors all use cumulative GPA
How to raise your GPA
The more credits you have, the harder it is to move your GPA. Each new grade has less impact. But these tactics help:
- Retake low grades — many schools replace the old grade when you retake a class. Check your school's grade replacement policy.
- Take fewer credits — 12 credits with all A's beats 18 credits with mixed grades. Quality over quantity.
- Focus on high-credit classes — a 4-credit A boosts your GPA more than a 1-credit A. Prioritize labs, studios, and core classes.
- Use office hours early — professors' office hours are underused. Go in week one, not week ten.
- Pass/fail risky electives — if your school allows it and the grade won't count, P/F protects your GPA from a C in a hard elective.
- Withdraw if needed — a W on your transcript is less damaging than an F. Know your school's withdrawal deadlines.
GPA requirements by goal
Common benchmarks for graduation honors, grad school, and professional programs:
| Goal | Min. GPA | Notes |
|---|---|---|
| Summa Cum Laude | 3.9+ | Top graduation honors (usually top 5%) |
| Magna Cum Laude | 3.7+ | Second-highest honors (usually top 10%) |
| Cum Laude / Dean's List | 3.5+ | Graduation honors / Dean's list threshold |
| Medical School admissions | 3.7+ | Competitive med school applicants average 3.7+ |
| Law School admissions | 3.5+ | Top law schools average 3.5+ (top 14: 3.7+) |
| Graduate School admissions | 3.0+ | Minimum for most master's programs |
| Good academic standing | 2.0+ | Minimum to avoid academic probation |
Frequently asked questions
How do I calculate my GPA?
To calculate your GPA, multiply each class's grade points (A=4.0, B=3.0, C=2.0, D=1.0, F=0.0) by the credits or hours for that class, add them all up, then divide by the total credits. Example: an A (4.0) in a 3-credit class and a B (3.0) in a 4-credit class = (4.0 × 3 + 3.0 × 4) ÷ 7 = 3.43 GPA. Our GPA calculator does this automatically for college and high school.
What is a 4.0 GPA?
A 4.0 GPA means straight A's on the standard unweighted 4.0 scale. In weighted high school systems (where AP and honors classes count for more), a GPA above 4.0 is possible — up to 5.0 for all AP classes. A 4.0 unweighted GPA is the maximum on most college transcripts and signals outstanding academic performance.
How do I calculate my cumulative GPA?
Cumulative GPA combines all terms using a weighted average. Formula: cumulative GPA = ((old_GPA × old_credits) + (new_GPA × new_credits)) ÷ (old_credits + new_credits). For example, if you have a 3.2 cumulative GPA over 60 credits and earn a 3.8 this semester over 15 credits, your new cumulative = ((3.2 × 60) + (3.8 × 15)) ÷ 75 = 3.32. Enter your prior GPA and credits in the calculator to find your updated cumulative GPA.
What GPA do you need for Dean's list?
Dean's list requirements vary by school, but most require a semester GPA of 3.5 or higher while taking a full course load (typically 12+ credits). Some schools set the bar at 3.7 or 3.8. Dean's list is a semester-based honor — you need to earn it each term. It's distinct from graduation honors (cum laude, magna cum laude, summa cum laude), which use cumulative GPA.
What is a weighted GPA?
A weighted GPA gives extra points for harder classes. On the most common weighted scale, an A in a regular class = 4.0, an A in an honors class = 4.5, and an A in an AP or IB class = 5.0. This lets students exceed a 4.0 GPA and rewards them for taking challenging courses. Unweighted GPAs treat all classes equally (A = 4.0 regardless of difficulty). Colleges often recalculate GPAs using their own method.
Does a plus or minus affect my GPA?
Yes — on a standard +/- scale, an A- is 3.7, a B+ is 3.3, a B- is 2.7, and so on. The plus/minus system creates more granularity: an 89 percent (B+) is worth 3.3 points while a 90 percent (A-) is worth 3.7. Some schools don't use plus/minus grades — they assign 4.0 for any A and 3.0 for any B. Check your school's grading scale; our calculator supports both standard +/- and unweighted 4.0 scales.
How do I convert a percentage to GPA?
Use the standard conversion: 93–100% = A (4.0), 90–92 = A- (3.7), 87–89 = B+ (3.3), 83–86 = B (3.0), 80–82 = B- (2.7), 77–79 = C+ (2.3), 73–76 = C (2.0), 70–72 = C- (1.7), 67–69 = D+ (1.3), 63–66 = D (1.0), 60–62 = D- (0.7), below 60 = F (0.0). An overall 85% average equals roughly a 3.0 GPA, while a 90% average is around 3.7.
What GPA do you need for grad school?
Most graduate programs require a minimum 3.0 cumulative GPA, though competitive programs expect 3.5+. Med school applicants average around 3.7 (science GPA 3.65). Top law schools (T14) average 3.7–3.9. PhD programs in competitive fields often want 3.5+ plus strong research experience. A lower GPA can still work with strong GRE/MCAT scores, research, and letters of recommendation.
Can I calculate GPA with pass/fail courses?
Pass/fail courses typically don't affect your GPA — they're recorded as P (pass) or F (fail) without grade points, and the credits aren't counted in the GPA calculation. A failed pass/fail course may count as an F (0.0) at some schools. Exclude pass/fail courses from the GPA calculator unless your school treats them differently. The credits still count toward graduation requirements.
What is the difference between semester and cumulative GPA?
Semester (or term) GPA reflects only your grades in that specific semester. Cumulative GPA averages all grades across every semester you've completed. If you earn a 4.0 this semester but your prior cumulative was 3.0, your new cumulative will be pulled up but not to 4.0 — it depends on how many credits you had before. Cumulative GPA is what appears on your transcript as your overall academic record.
How many credits is full-time?
In US colleges, full-time enrollment is typically 12 credits or more per semester. Most full-time students take 15 credits (five 3-credit classes) to graduate in four years (120 credits total). Some schools define full-time as 12 credits for financial aid purposes but recommend 15 for on-time graduation. High schools don't use credit hours the same way — most count courses and require 22–26 credits to graduate over four years.
How do I raise my GPA?
The math is harder as you accumulate credits — each new grade has less impact. Fastest ways: (1) retake failed or low-grade classes if your school replaces the old grade, (2) take lighter course loads and focus on A's, (3) earn A's in higher-credit classes (they weigh more), (4) consider pass/fail for risky courses if allowed, (5) use office hours and tutoring early. Realistically, going from 2.5 to 3.0 over 60 credits requires a 3.5 average for the next 60 credits.