What is the College GPA Calculator?
This calculator computes your grade point average (GPA) on a standard 4.0 scale by combining the grade points you earned in each course with the number of credit hours that course was worth. Because higher-credit courses weigh more heavily, this is called a credit-weighted GPA — the same method most US colleges and universities use.
How to use it
For each course, enter the grade points (A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, and so on) and the number of credit hours. Leave a row's credits blank or 0 to skip it. The calculator multiplies grade points by credits for every course, sums those products, and divides by the total credits.
The formula explained
The GPA equation is:
$$\text{GPA} = \frac{\displaystyle\sum_{i=1}^{5} g_i \cdot c_i}{\displaystyle\sum_{i=1}^{5} c_i} = \frac{g_1\,c_1 + g_2\,c_2 + g_3\,c_3 + g_4\,c_4 + g_5\,c_5}{c_1 + c_2 + c_3 + c_4 + c_5}$$
The numerator is your total quality points; the denominator is the total credit hours attempted. The ratio is your weighted average grade.
Worked example
Suppose you took three courses: a 2-credit A (4.0), a 2-credit B (3.0), and a 2-credit A (4.0). Quality points = \((4.0\times2) + (3.0\times2) + (4.0\times2) = 8 + 6 + 8 = 22\)? No — for a true mixed example: $$4.0\times2 + 3.5\times2 + 3.0\times2 = 8 + 7 + 6 = 21$$ over 6 credits = 3.5 GPA.
FAQ
Does credit weighting matter? Yes. A poor grade in a high-credit course pulls your GPA down more than the same grade in a low-credit course.
What about A+ grades? Many schools cap A at 4.0; some allow 4.3. Enter whatever value your institution uses.
Can I include more than five courses? This tool supports five rows; for a full semester, group or add courses across multiple calculations using cumulative totals.
