GPA Calculator

GPA calculator — free, fast, and private

Your grade point average sums up a whole term — or a whole degree — in a single number, and it's the figure schools, scholarships, and employers look at first. This calculator works it out the standard way: add each course, pick its letter grade, enter how many credit hours it was worth, and it returns your GPA on the 4.0 scale instantly. Nothing to install, no sign-up, and every figure is computed in your browser, so your grades never leave your device.

It updates live as you type, so you can add or remove a course, change a grade, and watch the average move. That makes it just as useful for planning — "what do I need this term to pull my average up?" — as for recording what you actually earned.

How a weighted GPA works

A GPA is a weighted average, not a simple one. Each letter grade converts to a number of grade points — an A is 4.0, a B is 3.0, and so on — and each course is weighted by its credit hours. The math is: multiply every course's grade points by its credits, add those up, and divide by the total number of credits.

An example makes it concrete. Say you took a 4-credit class and earned an A (4.0), and a 3-credit class where you earned a B (3.0). The grade points are 4 × 4.0 = 16 and 3 × 3.0 = 9, which total 25. Divide by the 7 total credits and your GPA is 25 ÷ 7 ≈ 3.57. Notice the 4-credit A pulls harder than the 3-credit B — that's the weighting at work. Because a GPA is really a percentage-style proportion of points earned to points possible, if you want to run a raw percentage on its own the Percentage Calculator does that too, also in your browser.

The standard 4.0 grade scale

This calculator uses the most common US unweighted 4.0 scale:

• 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
• F — 0.0

An F counts as zero grade points but its credits still count in the total, which is why a failed class pulls an average down so sharply — you keep the credit-hour weight but earn none of the points.

Why credit hours matter

Credit hours (sometimes called units or credits) measure how much a course "counts" — usually tied to how many hours a week it meets. A lecture might be 3 credits and a lab 1 credit. Because the GPA weights each grade by its credits, a top grade in a heavy 4-credit course does more for your average than the same grade in a 1-credit elective, and a poor grade in a big course hurts more. Entering the right credit hours is what makes the result match your official transcript rather than a rough guess.

Grading scales vary between schools

The 4.0 scale above is the common baseline, but it is not universal, and it's worth knowing the differences. Some schools cap an A+ at 4.0, while others award 4.3 to reward it. Many don't use a D− at all; some add pluses and minuses that others ignore. High schools often report a weightedGPA that gives extra points for Honors, AP, or IB courses, pushing averages above 4.0 — that's a different calculation from the unweighted one here. International systems (percentages, a 10-point scale, UK classifications) don't map cleanly onto 4.0 at all.

The takeaway: this tool gives an accurate GPA on the standard US 4.0 scale, which is the right answer for most American colleges — but always check your own institution's official scale for the definitive number, especially for anything high-stakes.

Works on your phone

The calculator runs in your phone's browser with nothing to install. Each course is a compact row — a grade picker, a credit-hours field that opens the numeric keypad, and a remove button — so it stays easy to use on a narrow screen. Add as many courses as you need, and the GPA appears right below without scrolling. Since everything happens locally, it responds instantly.

Privacy: your grades never leave your device

Your grades and credit hours are used only to compute the GPA in your browser. Nothing is uploaded, nothing is stored on a server, and there is no account to create. When you close the page the numbers are gone, because they were never sent anywhere in the first place — which is reassuring for something as personal as your academic record.

Frequently asked questions

How is GPA calculated?

Each letter grade becomes grade points (A = 4.0, B = 3.0, and so on), multiplied by the course's credit hours. Add those weighted points for every course and divide by the total credit hours — that weighted average is your GPA.

What are credit hours?

A measure of how much a course counts, usually based on class time per week. They weight the average, so grades in higher-credit courses affect your GPA more than grades in lower-credit ones.

Which grading scale does this use?

The standard US unweighted 4.0 scale (A = 4.0 down to F = 0.0). Schools vary — some award A+ = 4.3, some drop the D−, and high-school weighted GPAs add points for AP/Honors — so check your institution's official scale for the definitive figure.

Is my data uploaded to a server?

No. Everything runs in your browser — your grades never leave your device, and nothing is stored or sent anywhere.