Grade Calculator
Calculate your weighted average grade from assignments, tests and their weights — and find what you still need to reach your target grade.
More grade calculators
Plan your final exam or work out your GPA.
How to calculate a weighted grade
In most courses, assignments count differently: a final exam may be worth 30% of the grade and homework only 10%. A weighted average multiplies every grade by its weight, adds the results and divides by the total weight.
Example: homework 92% (weight 20%), midterm 81% (30%) and project 95% (20%) give (92 × 20 + 81 × 30 + 95 × 20) ÷ 70 = 6,170 ÷ 70 = 88.14%, a B+.
How to use the calculator
- Choose how your grades are written: percent, letters (A+ to F) or points on any scale.
- Enter each grade with its weight. Add or remove rows as you need.
- The weights do not have to add up to 100 — the calculator divides by the total weight you entered.
- In Planning the rest of the course, enter your target and the weight of the work still to come to see the average you need on it.
Letters and percentages
When you enter letters, each one is counted at the middle of its usual percentage band — A = 95%, B+ = 88%, C = 75% — on the common US scale (A from 93%, B from 83%, C from 73%, D from 63%). Your school may use different bands; percentages give the most exact result.
Weighted vs simple average
A simple average gives every grade the same weight. If all your weights are equal, both give the same result; otherwise the weighted average is the one your teacher uses.
Frequently asked questions
How do I calculate my grade with weights?
Multiply each grade by its weight, add up the results and divide by the sum of the weights.
Do the weights need to add up to 100%?
No. If they add up to less, for example 70% so far, the calculator shows your current average for the work that is graded.
How do I find what I need on the rest of the course?
Enter your target and the weight still to come under Planning the rest of the course. The calculator shows the average you need on the remaining work.