Three calculations in one tool
Weighted average. Each grade has a weight (say, a midterm counts double a quiz). The formula is Σ(grade × weight) ÷ Σ(weights). With grades 8, 6.5 and 9 and weights 1, 1 and 2 the average is 8.125. It works with any scale (0–10, 0–20, 1–7, 0–100) because the calculator doesn't impose one; enter the passing grade to see whether you pass.
GPA (4.0 scale). Choose each course's letter and credits: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0, with pluses and minuses in between (A− = 3.7; B+ = 3.3…). With an A (3 credits), B+ (4) and C (3), the GPA is 3.12. Some universities use slightly different equivalences, so check your school's table.
What do I need on the final? Add your partial grades with their weight in %, the final's weight and the grade you want. Example (0–20 scale): 14 at 30% and 12 at 30%, a 40% final and a target of 10: you already have 7.8 points, so you need 5.5 on the final.
If your question is what a percentage of a grade is, use Percentage Calculator.
Cumulative and weighted GPA
To see how this term changes your overall GPA, enter your current cumulative GPA and the credits you've completed. The calculator combines them: (old GPA × old credits + this term's grade points) ÷ total credits. For example, a 3.2 over 30 credits plus a 3.8 term over 15 credits gives a new cumulative GPA of 3.40.
Many high schools also report a weighted GPA, which adds 0.5 points for Honors classes and 1 point for AP or IB classes (so an A in AP counts as 5.0). Choose the course type on each row and you'll see both your unweighted and weighted GPA. Failing grades never get the bonus.
Frequently Asked Questions
How is a weighted average calculated?
Multiply each grade by its weight, add the results and divide by the sum of the weights.
How do I work out the grade I need on the final?
Use the “What do I need on the final?” tab: enter your grades with their weights, the final's weight and your target.
What grading scale does it support?
Any. For the needed-grade calculation, enter your scale's maximum grade and we'll warn you if the goal is no longer reachable.
Is the GPA it calculates official?
It's an estimate using the standard letter equivalences. Your school may use a slightly different table.