College GPA Calculator
Calculate your cumulative college GPA across multiple semesters, including current and prior credits.
Plan your cumulative GPA
Use GPA-bearing credits, including old attempts you plan to retake. Exclude pass/fail and other credits your institution leaves out of GPA.
Exclude the retakes listed below.
Include retaken courses
List each old attempt once. Its credits and grade must already be included in the prior totals. New retake grades are fixed assumptions when solving the target.
- Projected cumulative GPA
- 3.26
- Required GPA on new credits
- 3.70
This target holds the listed retake grades fixed and solves for the average on upcoming new credits.
244.50 quality points ÷ 75.00 GPA credits = 3.26
After retakes: 192.00 quality points across 60.00 credits. Replacement changes quality points without adding the old credits again; counting both adds the new attempt.
Use unrounded transcript totals when available. Institutional limits on retakes, forgiveness, letter-grade conversion and rounding may differ.
Your entries stay in this browser. A copied link contains your inputs after #; share it only with people who should see them. Nothing is saved after you leave unless you keep a link. For older shared links, confirm the inferred maximum score or GPA scale against your institution’s rules.
Learn with a worked scenario
Cumulative GPA, future-credit targets and retakes under replace-old or count-both policies.
Question
Prior GPA 3.20 over 60 GPA credits; 15 new credits at a forecast 3.50.
- Prior quality points = 3.20 × 60 = 192.
- New quality points = 3.50 × 15 = 52.5.
- Cumulative GPA = (192 + 52.5) / (60 + 15) = 3.26.
The projected cumulative GPA is 3.26 on the entered scale.
Precision: GPA and quality points are shown to 2 decimal places. Intermediate values are not rounded, and no institutional rounding is applied.
Load this example in the calculatorTry a variation
Change only the forecast GPA on the 15 new credits from 3.50 to 4.00. What is the projected cumulative GPA? Predict the answer before you reveal it.
Predict, then reveal
3.36. The new credits now bring 4.00 × 15 = 60 quality points, so the cumulative GPA is (192 + 60) / 75 = 3.36. A half-point better term moves a 60-credit record by only 0.10.
| GPA on 15 new credits | Cumulative GPA |
|---|---|
| 3.00 | 3.16 |
| 3.50 | 3.26 |
| 4.00 | 3.36 |
Check the assumptions
- Credits are GPA-bearing credits, which may differ from earned degree credits.
- Upcoming new credits exclude separately entered retakes.
- The target calculation holds the entered retake grades fixed.
Common mistake: Adding retake credits again when the policy replaces the old attempt.
Method reference: University of Illinois Registrar: GPA arithmetic. These examples illustrate the method; they do not validate every possible input.
How to Use This Calculator
Enter your input values
Fill in all required input fields for the College GPA Calculator. Follow the units and input format printed next to each field. Where a unit selector is available, choose the units that match your data.
Review your inputs
Double-check that all values are correct and match the units or format shown for each field. Incorrect units are the most common source of calculation errors and can produce results that are off by factors of 2, 10, or more.
Read the results
The College GPA Calculator computes the output in your browser and displays the results, with units clearly labeled, as soon as they are ready — no data sent to a server.
Explore parameter sensitivity
Try adjusting individual input values to see how the output changes. This is a quick and effective way to develop intuition about how different parameters influence the result and to identify which inputs have the largest effect.
Formula Reference
Cumulative GPA
Cumulative GPA = (Prior GPA * Prior Credits + Current GPA * Current Credits) / (Prior Credits + Current Credits)
Variables: Prior GPA = GPA before current term, Prior Credits = credits before current term, Current GPA = this term's GPA, Current Credits = this term's credits
When to Use This Calculator
- •Use the College GPA Calculator when you need accurate results quickly without the risk of manual computation errors or unit conversion mistakes.
- •Use it to verify calculations made by hand or in spreadsheets — an independent check can catch errors before they lead to costly decisions.
- •Use it to explore how changing input parameters affects the output — a quick way to develop intuition and identify the most influential variables.
- •Use it when collaborating with others to ensure everyone is working from the same numbers and applying the same assumptions.
About This Calculator
Combine GPA-bearing credits and quality points, model retakes under the selected policy, and solve for the average needed on other upcoming credits. Use one consistent credit system and grade-point scale.
The Theory Behind It
Cumulative GPA is total quality points divided by GPA-bearing credits. Prior quality points are prior GPA times prior credits. Add each new course's credits times grade points, then divide by the corresponding total credits. Retakes need a separate policy: replacement subtracts the old attempt's quality points and adds the new points while retaining that course's credits once; counting both keeps the old points and adds both the new points and another attempt's credits. Retaken old attempts must already be included in the entered prior totals. Upcoming credits in this form exclude the retakes listed separately. The target calculation treats the entered retake outcomes as fixed, then solves for the average needed on other upcoming credits. Use one consistent credit system and the institution's actual grade-point scale. A result does not decide admission, honors or graduation eligibility. Credits are GPA-bearing credits, which may differ from earned degree credits. Upcoming new credits exclude separately entered retakes. The target calculation holds the entered retake grades fixed.
Real-World Applications
- •Cumulative GPA, future-credit targets and retakes under replace-old or count-both policies.
Frequently Asked Questions
Why not average semester GPAs directly?
Semesters with different credit totals have different weights. Combine quality points and GPA-bearing credits rather than giving each semester equal weight.
Where do retake credits go?
The old attempt belongs in prior credits and GPA; list the new attempt in the retake section. Exclude that retake from other upcoming credits so it is not counted twice.
Worked Examples
Example 1: Work through the linked example
Prior GPA 3.20 over 60 GPA credits; 15 new credits at a forecast 3.50.
The projected cumulative GPA is 3.26 on the entered scale.
Common Mistakes & Tips
- !Adding retake credits again when the policy replaces the old attempt.
- !Credits are GPA-bearing credits, which may differ from earned degree credits.
- !Upcoming new credits exclude separately entered retakes.
- !The target calculation holds the entered retake grades fixed.
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