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 (the values below are a common convention; your school's scale governs). 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 a common 4.0 scale with common high-school weightings for honors (+0.5) and AP (+1.0). There is no national standard: schools differ on the percent cut-offs, the plus/minus values and the bonuses, and your school's own scale is the one that counts.
| 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 a rough guide on the unweighted 4.0 scale (these bands are ours, not a standard):
3.5+, Excellent
Mostly A's and A-'s. Dean's list and Latin honors cut-offs are set by each school; check yours.
3.0–3.49, Good
A B to B+ average. Graduate programs publish their own minimums; check each one.
2.5–2.99, Average
Between a C+ and a B average, above the C that federal aid rules ask for by the end of year two.
Below 2.0, At risk
Below a C average. Federal aid requires a C (2.0) or equivalent by the end of year two (34 CFR 668.34); schools set their own probation rules.
College vs high school GPA
Both use the 4.0 scale, but there are key differences:
High school GPA
- Often weighted, commonly an A in 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
- Usually an 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 thresholds, not rules: each school sets its own honors cut-offs and each program its own admissions minimum. Only the last row comes from a published rule.
| Goal | Min. GPA | Notes |
|---|---|---|
| Summa Cum Laude | 3.9+ | A common cut-off; some schools use class rank instead |
| Magna Cum Laude | 3.7+ | A common cut-off; set by each school |
| Cum Laude / Dean's List | 3.5+ | A common cut-off; set by each school |
| Graduate School admissions | 3.0+ | A common minimum; each program sets its own |
| Federal student aid progress | 2.0+ | A "C" average or equivalent by the end of year two (34 CFR 668.34) |
Frequently asked questions
How do I calculate my GPA?
Turn each letter into points (on the usual 4.0 scale A=4.0, B=3.0, C=2.0, D=1.0, F=0.0), multiply by that class's credit hours, add the products, and divide by the credits you took. Say you earn an A in a 3-credit class and a B in a 4-credit class: (4.0 × 3 + 3.0 × 4) ÷ 7 = 3.43. The GPA calculator above repeats this for up to twenty courses.
What is a 4.0 GPA?
It means every grade was an A on an unweighted scale. Where a high school adds weight for AP and honors work, averages above 4.0 are possible, reaching 5.0 if every class is AP and gets the common one-point bonus. Most college transcripts cap at 4.0, though a few schools value an A+ above it.
How do I calculate my cumulative GPA?
Weight each GPA by its credits: cumulative = ((old GPA × old credits) + (term GPA × term credits)) ÷ (old credits + term credits). With 3.2 over 60 credits and a 3.8 term over 15, that is ((3.2 × 60) + (3.8 × 15)) ÷ 75 = 3.32. Type your prior GPA and credits into the optional box and the calculator does the same sum.
What GPA do you need for Dean's list?
There is no national rule. Each college sets its own Dean's list bar, usually a minimum term GPA plus a minimum number of graded credits that term, so look it up in your catalog. It is awarded term by term, unlike Latin honors such as cum laude, which your whole-degree GPA decides.
What is a weighted GPA?
A weighted GPA adds points for harder classes. A common version gives an A 4.0 in a regular class, 4.5 in honors and 5.0 in AP or IB, so averages can pass 4.0. An unweighted GPA scores every class alike. Schools choose their own bonuses, and many colleges recompute applicants' GPAs their own way.
Does a plus or minus affect my GPA?
Where your school uses them, yes. On the common +/- scale an A- is 3.7, a B+ 3.3 and a B- 2.7, so an 89 percent (B+) earns 3.3 while a 90 percent (A-) earns 3.7. Schools without plus/minus give every A 4.0 and every B 3.0. The calculator uses the +/- values; pick the plain letter if your school ignores the sign.
How do I convert a percentage to GPA?
A widely used conversion, which your school may not follow: 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). On it, an 85% course grade is a B (3.0) and a 90% is an A- (3.7).
What GPA do you need for grad school?
No single figure applies: each program sets its own minimum, and the students it admits may sit well above that floor. Look at the admitted-student figures the program publishes rather than a rule of thumb. A GPA below a program's usual range can be offset by strong test scores, research and references.
Can I calculate GPA with pass/fail courses?
Usually a pass earns credit but no grade points, so the course sits outside the GPA altogether. Some schools score a failed pass/fail course as an F (0.0). Leave pass/fail courses out of the calculator unless your school counts them. They still count toward the credits you need to graduate.
What is the difference between semester and cumulative GPA?
A semester (term) GPA covers one term's grades only. The cumulative figure averages every graded credit so far. A strong term lifts the cumulative number, but by how much depends on how many credits were already on the record. Transcripts show the cumulative figure as the overall record.
How many credits is full-time?
For federal student aid, an undergraduate at a semester or quarter school must carry at least 12 credit hours a term to count as full-time (34 CFR 668.2); schools may set a higher bar. Graduating on time is a separate sum: a 120-credit degree over 8 semesters needs 15 a term, so check your degree's credit total. High school graduation credits are set by each state or district.
How do I raise my GPA?
Every credit already on the record dilutes new grades, so change is slow. What helps: retaking a low grade where the new one replaces it, a lighter load you can ace, A's in the classes with the most credits, pass/fail for a risky elective if allowed, and help from office hours early. As a worked case, moving from 2.5 over 60 credits to 3.0 takes a 3.5 average over the next 60.