GPA Calculator
Work out your GPA from your courses' letter grades or percentages and credits, add a current GPA for a cumulative figure, or find the GPA you need on further credits to reach a target.
Change the values and press Calculate to work out your own figures.
GPA from your courses
Enter each course's grade and credits; add your GPA so far for a cumulative GPA.
| Course | Grade | Credits | Points |
|---|---|---|---|
| Course 1 | A | 3 | 4.00 |
| Course 2 | B+ | 4 | 3.30 |
| Course 3 | A- | 3 | 3.70 |
| Course 4 | C | 2 | 2.00 |
Show the working
- GPA = Σ(grade points × credits) ÷ Σ credits
- = 40.30 ÷ 12 = 3.3583
Weighted GPA (honors, AP, IB)
Enter each course's grade, credits and level; honors adds 0.5 and AP, IB and college courses add 1.
| Course | Grade | Credits | Points |
|---|---|---|---|
| Course 1 | A | 1 | 4.50 |
| Course 2 | A | 1 | 5.00 |
| Course 3 | A+ | 1 | 4.33 |
Show the working
- GPA = Σ(grade points × credits) ÷ Σ credits
- = 13.83 ÷ 3 = 4.6111
GPA needed to reach a target
Enter your GPA and credits so far, your target and how many more credits you'll take.
Show the working
- needed = (target × (current credits + new credits) − current GPA × current credits) ÷ new credits
How to use it
Enter each course's grade and credits; add your GPA so far for a cumulative GPA. Enter each course's grade, credits and level; honors adds 0.5 and AP, IB and college courses add 1. Enter your GPA and credits so far, your target and how many more credits you'll take.
Grades can be letters (A+ to F, P or NP for pass/no pass) or percentages (0 to 100). Show the working gives the formula with your numbers.
Key facts
GPA = Σ(grade points × credits) ÷ Σ credits needed = (target × (credits so far + new credits) − GPA × credits so far) ÷ new credits
Grade scales
Letters are worth 4 points for A, 3 for B, 2 for C, 1 for D and 0 for F. Plus and minus move a grade by 0.3 on the one-decimal scale (A− = 3.7) or by a third on the thirds scale (A− = 3.67); pick the one your school uses.
Pass/no-pass courses are left out of the GPA, as most schools do; their credits are listed separately.
Letter grades, points and percentages
| Letter | One-decimal scale | Thirds scale | Typical percentage |
|---|---|---|---|
| A+ | 4.30 | 4.33 | 97–100% |
| A | 4.00 | 4.00 | 93–96% |
| A− | 3.70 | 3.67 | 90–92% |
| B+ | 3.30 | 3.33 | 87–89% |
| B | 3.00 | 3.00 | 83–86% |
| B− | 2.70 | 2.67 | 80–82% |
| C+ | 2.30 | 2.33 | 77–79% |
| C | 2.00 | 2.00 | 73–76% |
| C− | 1.70 | 1.67 | 70–72% |
| D+ | 1.30 | 1.33 | 67–69% |
| D | 1.00 | 1.00 | 63–66% |
| D− | 0.70 | 0.67 | 60–62% |
| F | 0.00 | 0.00 | below 60% |
Questions
How is GPA worked out?
Multiply each course's grade points by its credits, add them up and divide by the total credits.
Do pass/fail courses count?
Not in the GPA; they still count towards credits earned.
Formulas
GPA = Σ(grade points × credits) ÷ Σ credits needed = (target × (credits so far + new credits) − GPA × credits so far) ÷ new credits
Sources
Limitations
- Letter-grade points follow the common US 4.0 scale; schools differ, so check your own school's table.
- Percentage bands for letters are the common 97/93/90 … 60 cut-offs.
- Weighted GPAs add 0.5 for honors and 1 for AP, IB and college courses; some schools use other bonuses.
- At most 50 rows.