How to use this weighted grade calculator
- 1
Find the grade weights in your syllabus, for example homework 20%, quizzes 15%, midterm 25% and final exam 40%.
- 2
Add a row for each part and enter its grade and weight. Use a percentage (92) or points (45/50).
- 3
Leave the grade blank for anything not graded yet. The calculator shows your current grade from the work done so far.
- 4
Enter the grade you want to see the average you need on the remaining work.
Good to know
01
Weighted vs unweighted average
An unweighted average treats every grade the same. A weighted average gives bigger parts of the course more say. Take homework at 100% worth 10% and an exam at 60% worth 90%. The unweighted average is (100 + 60) ÷ 2 = 80%, but the weighted grade is (100 × 10 + 60 × 90) ÷ 100 = 64%, because the exam counts nine times as much. This is different from a weighted GPA, which adds extra points for AP and honors classes. See weighted vs unweighted GPA for how that works.
02
What if some work is not graded yet?
Leave those grades blank and keep their weights. Your current grade is worked out from the graded parts only. If you enter a target, the calculator uses the formula below to find the average you need on everything still to come:
Needed = (Target × Total weight − Sum of grade × weight so far) ÷ Remaining weight
With the example above and the final exam not taken yet, the current grade is 84.42%. To finish with 90% you need (90 × 100 − 5065) ÷ 40 = 98.38% on the final. For one exam on its own, the final grade calculator does the same job with fewer steps.
03
What if my weights do not add up to 100%?
The calculator divides by the total of the weights you entered, so the result is still correct. For example, weights of 30 and 20 give the same result as 60 and 40. It is still worth checking your syllabus, because a total below 100% often means a part of the course is missing.
How do I calculate my weighted grade?
Multiply each grade by its weight, add those numbers together, and divide by the total of the weights. This calculator does it for you: enter each part of the course with its grade and weight.
Can I enter points instead of percentages?
Yes. Type the grade as points earned over points possible, such as 45/50, and it is converted to a percentage (90%).
What if my class grade uses points instead of weights?
Enter each assignment's points as the grade (for example 18/20) and its total points as the weight (20). Bigger assignments then count for more, exactly as in a points based class.
Why is my weighted grade different from my average?
A simple average counts every grade the same. A weighted grade counts each part by its weight, so a heavily weighted exam moves your grade more than a lightly weighted homework set.
What grade do I need on the rest of the course?
Leave the grades blank for work not done yet, keep the weights, and enter the grade you want. The calculator shows the average you need on the remaining work, or tells you if the goal is already secured or out of reach.