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GPA Calculator

Work out your grade point average the way schools do: each letter grade is worth a set number of points, weighted by the course's credit hours. Add up to six courses and see your GPA instantly.

Leave the credit hours blank for any course you are not taking — it will be ignored. Grades use the standard 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.

Your Weighted GPA

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Disclaimer: Results are calculated on the standard 4.0 scale from the grades and credit hours you enter. Some schools use a different scale (for example, A+ = 4.33 or no plus/minus grades) — check your school's handbook for its official scale.

How It Works

A GPA (grade point average) turns letter grades into a single number. On the standard 4.0 scale, each letter grade is worth fixed grade points: 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 and F = 0. A weighted GPA multiplies each grade's points by the course's credit hours, adds those products up, and divides by the total credit hours. A 4-credit course therefore counts twice as much as a 2-credit course — which is why a low grade in a heavy course hurts more than the same grade in a light one.

Worked Example

Take four courses: an A in a 3-credit course, a B+ in a 4-credit course, an A− in a 3-credit course and a B in a 3-credit course. The grade points are 4.0 × 3 = 12.0, 3.3 × 4 = 13.2, 3.7 × 3 = 11.1 and 3.0 × 3 = 9.0, for a total of 45.3 grade points over 13 credit hours. Dividing 45.3 by 13 gives a GPA of 3.48. The same four grades in equal 3-credit courses would give 3.50, so the extra credit hour on the B+ course pulls the average down slightly — that is weighting in action.

How to Use This Calculator

Pick the letter grade for each course and enter its credit hours, then press Calculate — the result updates live as you type. Courses with blank credit hours are ignored, so you can calculate with anywhere from one to six courses. The result shows your weighted GPA to two decimal places, plus the total credit hours and grade points behind it.

Tips and Practical Advice

First, confirm your school's scale before trusting any GPA figure. Most US colleges use the 4.0 scale shown here, but some award 4.33 for an A+, some drop plus/minus grades entirely, and weighted high-school GPAs can run above 4.0 for honours and AP courses. Second, remember that credit hours are leverage: raising a grade in a 4-credit course moves your GPA twice as far as the same improvement in a 2-credit course. Finally, use the calculator to plan ahead — enter the grades you expect next semester alongside the ones you already have to see what your cumulative GPA will look like.

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