GPA Calculator

Calculate your grade point average (GPA) on a standard 4.0 scale. Add your courses, select the letter grade and enter the credit hours for each, and the calculator computes your weighted GPA.

GradeCredits

Your GPA

—

Share on WhatsApp

How it works

Each letter grade maps to grade points (A = 4.0, B = 3.0, etc.). Multiply each course's grade points by its credit hours, sum the results, and divide by the total credit hours.

GPA = Σ(grade points × credits) ÷ Σ(credits)

Worked examples

Three courses with different credit values
An A (3 credits), a B (3 credits) and an A- (4 credits) gives (12 + 9 + 14.8) ÷ 10 = 3.58 GPA.
The same three grades weighted equally
If all three courses carried equal weight, the same grades give (4.0 + 3.0 + 3.7) ÷ 3 = 3.57 — slightly lower than the 3.58 above, because the A- carried four credits to the A's three.
The ceiling of the 4.0 scale
Grades of A in every course give a GPA of exactly 4.0 whether the courses carry three credits or four, because every grade point is the maximum and the weights divide out. Adding another A cannot push the figure above 4.0, so a result higher than the unweighted maximum means a different scale is in use.

What this assumes, and where it does not apply

What it assumes

Each course's grade points are weighted by its credit value.
Uses the 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.
A course that is still in progress or has no grade yet contributes nothing, so only completed and graded courses should be entered.

Where the result does not apply

A 5.0 scale, plus/minus grades with their own point values, or different retake rules will not match this calculation.
Compare the formula shown on the page with your institution's own regulations before relying on the total.
A pass/fail or credit/no-credit course carries no grade points, so entering it as a zero would drag the average down for a course that was never graded on the 4.0 scale.

Frequently asked questions

What is a GPA?

Grade Point Average is the weighted average of your course grades, typically on a 0.0–4.0 scale.

What is a good GPA?

A 3.0 (B average) is solid, 3.5 or above is strong, and 4.0 is a perfect straight-A record.

What is a weighted GPA?

Weighted GPAs give extra points for honors or AP/IB courses, often on a scale above 4.0. This calculator uses a standard unweighted 4.0 scale.

Does a retake replace the old grade?

It depends on the institution. Some replace the earlier grade, some average the two attempts and some count both, so enter the grades your own regulations count and check the rule before relying on the total.

Maintained by David M at Delta Tech Solutions · Figures last checked 10 October 2026 · Next check due 10 April 2027

Related calculators

Everyday

Embed this calculator

Add this calculator to your site with a few lines of HTML. It stays free and includes a link back to www.calculator.co.tz.

<iframe
  src="https://www.calculator.co.tz/embed/gpa-calculator"
  title="GPA Calculator"
  width="600"
  height="520"
  style="max-width:100%;border:0;"
  loading="lazy"
  allow="clipboard-write"
></iframe>

GPA Calculator

How it works

Worked examples

Three courses with different credit values

The same three grades weighted equally

The ceiling of the 4.0 scale