Combines grades from multiple semesters into one overall figure, properly weighted by each semester’s credit hours.
How it works
Each semester’s GPA is multiplied by its credit hours, the products are summed, and the total is divided by the sum of the credit hours.
What this does not include
This does not include weighting categories within a single course — for that, use this site’s grade calculator instead. This tool combines whole semesters, not assignments within one term.
How to use this calculator
- Enter each semester’s GPA and credit hours.
A worked example
Semester 1: GPA 3.5 over 15 credits. Semester 2: GPA 3.8 over 12 credits. Combined GPA = (3.5×15 + 3.8×12) ÷ (15+12) = 3.633.
Two semesters both at 15 credits, GPA 3.0 and 4.0: combined GPA = 3.5 — a straight average, since both semesters carried equal weight.
What the variables mean
| Variable | Meaning |
|---|---|
| Grade 1, Credits 1 | First semester’s GPA and credit hours |
| Grade 2, Credits 2 | Second semester’s GPA and credit hours |
Edge cases worth knowing
This is a credit-weighted average, not a simple average of the two GPAs. A semester with more credit hours pulls the combined GPA further toward its own value — only equal credit loads (like the second example) produce a plain average.
Zero total credits makes the combined GPA undefined — there’s no weighting basis to average against, so the calculator declines to show a result.
Frequently asked questions
Why weight by credit hours instead of averaging the two GPAs directly?
A semester with more credit hours represents more coursework, so weighting by credits gives a more accurate combined GPA than treating both semesters equally regardless of their size.
What happens if both semesters have equal credit hours?
The weighted average reduces to the same result as a plain unweighted average, since every semester counts equally either way.
Can this combine more than two semesters?
This calculator handles two semesters at a time — for combining more, apply the same weighted-average approach with each additional semester’s GPA and credits.
