Calculate final grades, weighted averages, and test scores
What is the Grade Calculator?
The grade works like this: it computes the score needed on a final exam to reach a target course grade, given current grade and the final's weight. Everything happens on your device - the input never leaves your tab unless the tool clearly states it performs a server-side lookup.
How to use the Grade Calculator
Enter the values the calculator asks for.
Double-check the unit or period next to each field (per month vs per year, cm vs m).
Read the result together with the breakdown shown beneath it.
Adjust one input at a time to compare scenarios side by side.
Features
Calculate final grades, weighted averages, and test scores
Instant result, no page reload
Works in any modern browser, desktop or mobile
Free with no signup
Common mistakes to avoid
Mixing units or periods between fields
Rounding inputs before the final calculation
Treating estimates as guarantees for major decisions
Examples
Input
Result
Current 78% · final worth 40% · target 85%
You need 92.5% on the final
Best used for
Getting a reliable answer for grade without installing an app
One-off tasks done in under a minute from any device
Checking results before committing them to something important
Working on a phone where desktop software is unavailable
Privacy
Calculations run in your browser. Enter only what the calculation needs.
Frequently asked questions
Can it tell me if a target is impossible?
Yes - if the required score exceeds 100%, the target is mathematically out of reach and the tool says so.
What does a required score above 100% mean?
The target is mathematically unreachable with the final's weight - the tool says so directly instead of showing an impossible number.
How do I use the final-exam weight field?
Enter the portion of the course grade the exam represents (for example 40 for 40%), and your current standing as a percentage out of 100.