Is the GPA calculator free?

Yes. It is free, needs no account, and calculates in your browser; the grades you enter are not uploaded or stored.

How is GPA calculated?

Multiply each course's grade points by its credit hours, add those up to get total quality points, and divide by total credit hours. The result is the credit-weighted average on the 4.0 scale.

What is the difference between weighted and unweighted GPA?

Unweighted caps every course at 4.0. Weighted adds a bonus for harder courses — here +0.5 for honors and +1.0 for AP/IB — so a weighted GPA can exceed 4.0.

Why might my school's GPA differ from this estimate?

Grade-to-point mappings and weighting rules vary by institution (some use a 5.0 cap or weight only certain courses), so treat this as an estimate on the common 4.0 scale rather than an official transcript figure.

GPA Calculators

GPA Calculator

Enter each course's grade and credit hours and the calculator returns your grade point average on the standard 4.0 scale, weighted or unweighted.

Grade point average

Weighted scale (honors +0.5, AP/IB +1.0)

GPA

3.63

10 credits · 36.3 quality points

GPA = total quality points ÷ total credits, on the standard 4.0 scale. Grade scales vary by school, so treat this as an estimate on the common letter-to-point mapping.

About this calculator

A free GPA calculator that turns a list of courses, letter grades, and credit hours into a grade point average. It uses the standard US 4.0 scale and supports both unweighted GPA, where every course caps at 4.0, and weighted GPA, which adds a bonus for honors and AP/IB courses. GPA is the credit-weighted average of your grade points, so heavier courses count more. Grade scales differ between schools, so this is an estimate on the common letter-to-point mapping, computed in your browser.

How GPA is calculated

GPA is not a simple average of grades — it is weighted by credit hours. Each course contributes its grade points (A = 4.0, B = 3.0, and so on) multiplied by its credits; those products are summed into total quality points, which is then divided by total credits. A four-credit A therefore moves your GPA more than a one-credit A, which is exactly how registrars compute it.

This is why dropping or acing a heavy course swings the number so much. The calculator shows total credits and total quality points alongside the GPA, so you can see the two halves of the fraction and understand what is driving the result rather than treating it as a black box.

Weighted versus unweighted

Unweighted GPA caps every course at 4.0 regardless of difficulty. Weighted GPA rewards harder courses: this tool adds 0.5 to the grade point of an honors course and 1.0 to an AP or IB course before multiplying by credits, which is a common convention and can lift a GPA above 4.0. Switch the weighted toggle to compare the two for the same set of courses.

Conventions vary widely — some schools weight only AP, some use a 5.0 cap, some recompute for class rank differently. Because of that the weighted figure here is an estimate of the common +0.5 / +1.0 scheme, useful for planning and self-tracking rather than as an official transcript value.

By variant

Questions

Is the GPA calculator free?: Yes. It is free, needs no account, and calculates in your browser; the grades you enter are not uploaded or stored.
How is GPA calculated?: Multiply each course's grade points by its credit hours, add those up to get total quality points, and divide by total credit hours. The result is the credit-weighted average on the 4.0 scale.
What is the difference between weighted and unweighted GPA?: Unweighted caps every course at 4.0. Weighted adds a bonus for harder courses — here +0.5 for honors and +1.0 for AP/IB — so a weighted GPA can exceed 4.0.
Why might my school's GPA differ from this estimate?: Grade-to-point mappings and weighting rules vary by institution (some use a 5.0 cap or weight only certain courses), so treat this as an estimate on the common 4.0 scale rather than an official transcript figure.