Skip to content
K Knidox Search…

Grades

Free grade and GPA calculators — find where you stand and what you need next.

12 tools

About grades tools

Whether you are checking what you need on a final, averaging a semester, or combining years into a cumulative GPA, these tools are deterministic and show their work — so you can trust the number and learn the method.

When to use these tools

Common grades tasks and the tool that handles each one.

Frequently asked questions

Common questions about grades — the concepts behind the tools above.

How is GPA calculated?
Multiply each course’s grade points by its credit hours to get quality points, add those up across all courses, then divide by the total credit hours. On a 4.0 scale an A is usually 4 points, a B is 3, a C is 2, and a D is 1, so a heavier course pulls your average more than a lighter one.
What’s the difference between weighted and unweighted GPA?
An unweighted GPA caps every course at 4.0 regardless of difficulty. A weighted GPA adds extra points for harder classes — typically honors, AP, or IB courses — so a top grade there can count as 4.5 or 5.0, which lets a weighted GPA exceed 4.0.
What grade do I need on the final to reach my target?
Take your target course grade, subtract the points you’ve already earned from graded work, and divide by the final exam’s weight. For example, if the final is worth 30% and you need 8 more percentage points overall, you’d need about 27% out of that 30% weight — roughly a 90% on the final.
How do letter grades map to GPA points?
On the common U.S. 4.0 scale, A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0. Many schools add pluses and minuses, so an A− is often 3.7 and a B+ is 3.3, but the exact values are set by each institution.

Other subjects