GPA Calculator
Calculate GPA
Results
Unweighted 4.0 scale (reference)
| Grade | Point value |
|---|---|
| A+, A | 4.0 |
| A− | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B− | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C− | 1.7 |
| D+ | 1.3 |
| D | 1.0 |
| D− | 0.7 |
| F | 0.0 |
How to Use This GPA Calculator
Manually converting a stack of letter grades into one GPA number is the kind of task that looks simple until you mix 3-credit labs with 1-credit seminars and half-finished rows on scratch paper. I've watched students re-add the same column three times because a single rounding slip changed the semester average. This calculator keeps credit-weighted math in a high-precision workspace so you can focus on the grades themselves.
- Pick a grading mode. Unweighted uses the standard 4.0 table. Weighted adds one extra grade point per letter (except F) as a stand-in for many AP/IB-style policies.
- Add courses. Optional name, required letter grade, and positive credits. Blank rows are ignored—leave spares open while you type.
- Press Calculate. The result panel shows your GPA to several decimal places. Use Share Calculation to copy a link that restores your rows and mode.
- Convert individual letters. Need one grade's point value? Try the Letter Grade to GPA Calculator. Planning cumulative college standing? See the College GPA Calculator.
GPA Formulas and Practical Applications
GPA is a credit-weighted average of grade points—not a straight average of letters. A four-credit calculus A pulls your GPA harder than a one-credit elective A because it contributes four times the grade points to the numerator and four credits to the denominator.
GPA = Σ(Grade Point × Credits) / Σ(Credits)
Example: A− (3.7) in 4 credits plus B+ (3.3) in 3 credits gives numerator 3.7×4 + 3.3×3 = 24.7 and denominator 7, so GPA ≈ 3.53. Weighted mode would add one point to each letter's value before multiplying—only if that matches your district's honors policy.
Where this helps in real planning
- Estimating semester GPA before grades post to the portal.
- Checking whether one more A moves you above a scholarship cutoff.
- Comparing unweighted vs simplified weighted totals for honors applications.
Standard Units and Conversion Tables
Unweighted letter-to-point values used in this tool (also shown in the calculator reference table):
| Letter | Grade points |
|---|---|
| A+, A | 4.0 |
| A− | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B− | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C− | 1.7 |
| D+ | 1.3 |
| D | 1.0 |
| D− | 0.7 |
| F | 0.0 |
To map a numeric GPA back to a letter band, use the GPA to Letter Grade Calculator.
Frequently Asked Questions
How do you calculate GPA from credits?
Multiply each letter's grade point by its credits, sum those products, and divide by total credits. Rows without both a grade and credits are skipped.
What does weighted mean here?
One extra grade point is added on top of the unweighted table for every letter except F. Your counselor's handbook may define AP/IB weighting differently—treat this as an estimate.
Can I share my inputs with someone else?
Yes—after you calculate, Share Calculation updates the address bar with a link that reloads your courses and mode.
Do blank rows affect my GPA?
No. Only complete rows with a grade and positive credits count toward the total.
Is this an official transcript?
No. Schools differ on plus/minus cutoffs, pass/fail exclusions, and repeated courses. Use this for planning—not as proof of academic standing. Browse all grade calculators for related tools.
Disclaimer. RapidRatio is informational only. It is not academic, legal, or admissions advice. Verify every GPA figure with your school's official record.