GPA Calculator

How to calculate your GPA

1. Add a row for each course you want to include.
2. Pick the letter grade from the list and enter the course's credit hours.
3. Add more rows as needed; the credit-weighted GPA updates from every course at once.

A course with zero credits is accepted but does not move the average — handy for a pass/fail class you want to list without counting. You need at least one course carrying credit hours before the tool can return a GPA.

Letter grade and the numerical equivalents used for this calculator

Grade point average is the average of the grades you attained in each course, taking course credit into account. Grading systems vary between countries and even between schools; this calculator translates letter grades into the numerical values below.

Letter grade	Grade points
A+	4.3
A	4
A−	3.7
B+	3.3
B	3
B−	2.7
C+	2.3
C	2
C−	1.7
D+	1.3
D	1
D−	0.7
F	0
P (pass), NP (not pass), I (incomplete), W (withdrawal)	ignored

Most schools, colleges and universities in the United States use a system based on the letters above, though E is sometimes used instead of F. Systems do differ on what constitutes an A or a B, and some do not include an A+ or a B−. Others weight harder courses more heavily, so whatever grade is attained there has a larger effect on the overall GPA; this calculator accounts for that through the number of credits attributed to a course, where credit is the course's weighting.

The four ignored grades are ignored, not zeroed. A withdrawal contributes no credits and no grade points, so it leaves your average exactly where it was — which is a different outcome from an F, scored as 0 and averaged in like any other grade.

Planning ahead

The GPA Planning Calculator answers the other question: not what your GPA is, but what it has to become. Give it your current GPA and the credits behind it, your target, and the credits still to come, and it returns the minimum average those credits need.

For a current GPA of 3.663 over 8 credits, a target of 3 and 15 credits still to come, the next 15 credits need to average 2.646 or higher. If a target cannot be reached even by scoring the highest grade on the scale across every remaining credit, the calculator says so instead of returning a number you could never hit.

The formula

GPA is a credit-weighted average, not a plain one. For each course, multiply its grade points by its credit hours to get that course's quality points; add the quality points across all courses, then divide by the total credit hours:

GPA = total quality points ÷ total credit hours

Weighting by credits is why a heavier course pulls harder: a strong grade in a 4-credit class moves your GPA more than the same grade in a 1-credit class, and a poor grade in a heavy course hurts more.

A worked example

Suppose you took three courses this term:

• A (4.0) × 4 credits = 16.0 quality points
• B+ (3.3) × 3 credits = 9.9 quality points
• B− (2.7) × 3 credits = 8.1 quality points

That is 34.0 quality points across 10 credit hours, so the GPA is 34.0 ÷ 10 = 3.40. Notice it is not the simple average of 4.0, 3.3 and 2.7 (which would be 3.33) — the extra weight on the 4-credit A nudges it upward.

Weighted vs. unweighted GPA

This calculator uses the unweighted 4.0 scale, where every course maxes out at 4.0. Many high schools also report a weighted GPA that rewards course difficulty — commonly +0.5 for honors and +1.0 for AP or IB classes — which is why some transcripts show GPAs above 4.0. Colleges often recalculate to their own scale, so know which number a given form is asking for.

Cumulative GPA across semesters

A cumulative GPA uses the same method over every course you have taken: add up the quality points from all terms and divide by all the credit hours. It is not the average of each semester's GPA unless every semester carried exactly the same number of credits. To roll several terms together here, enter each course as its own row.

What counts as a good GPA

As a rough guide, 3.0 is a solid B average, 3.5+ is competitive for many programs, and 3.8+ is excellent. Context matters more than the number, though: a strong GPA in a demanding major can outweigh a higher one in an easier track. To work out an individual course grade from your assignments and exams, use the grade calculator. This uses the standard unweighted 4.0 scale; your institution's scale may differ.