Grade calculator. Know exactly what you need.
Weighted categories with a live letter grade, editable cutoffs, and a final-exam panel that shows the exact score you need to hit your target. Runs entirely in your browser — nothing uploaded.
A free online tool by Digital HeroesLetter grade cutoffs (editable)
Minimum percentage for each letter. Adjust to match your syllabus.
Everything is calculated and saved on your device only — nothing is uploaded to any server.
What do I need on the final?
Your categories above count for the rest of the course. Set how much the final exam is worth and pick a target.
e.g. 20 means the final is 20% of the course grade.
How weighted grades work
Each category contributes its score × weight; the total divided by the weight covered is your current grade. For the final-exam math: if the final is worth w% and you’re sitting at G%, finishing with target T% requires (T − G×(1−w/100)) ÷ (w/100) on the exam. Anything over 100% is mathematically out of reach, and at 0% the grade may already be secured. All of it runs in your browser, free forever. Need a custom calculator or portal for your school or team? That’s exactly the kind of thing we build as a custom web platform.
Everything a grade calculator should do.
- Calculate your weighted grade across any number of categories — homework, quizzes, midterms, labs, and more.
- Set custom category weights to match your exact syllabus percentages, with a live check that they total 100% with the final.
- See your live letter grade the moment you enter a score, with a standard or custom cutoff scale.
- Find the score you need on the final to reach an A, B, C, D or any custom target percentage — including “already secured” and “unreachable” verdicts.
- Edit letter grade cutoffs to reflect your professor’s scale, not a default one — and restore the standard scale any time.
- Copy a full grade summary to your clipboard with one click, including the final-exam calculation.
Five steps, no manual.
- Add each course category (homework, midterm, etc.) with its weight % and your score %.
- Watch your current weighted grade and letter update live at the top.
- Enter the final exam weight to see the required final score for A, B, C and D targets at a glance.
- Set a custom target grade for the exact score you need — or whether it’s already secured or out of reach.
- Optionally edit the letter grade cutoffs to match your syllabus, then copy your summary.
Frequently asked questions.
Is the Grade Calculator free?
Is it private? Are my grades uploaded anywhere?
How is my weighted grade calculated?
How does the “what do I need on the final” math work?
Can I change the letter grade cutoffs?
Will I lose my data if I close the tab?
Published · Last updated .
