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CollegeRanker

Free Tool

Final Grade Calculator

Figure out exactly what you need on your final exam — or see what your overall grade will be if you've already taken it.

You need

—
on your final to get a —
0% 100%

Enter your grades above to see the result.

How It Works

The Formula Behind the Calculator

What I Need

Use this if you haven't taken the final yet. Enter your current grade, the grade you want, and how much the final is worth. We'll tell you the minimum score needed to reach your goal.

I Already Took It

Already finished the final? Enter your grade before the final, your actual final exam score, and the final's weight to calculate your overall course grade.

The Formula

Required = (Goal Grade − Current Grade × (100% − Final Weight)) ÷ Final Weight. For example, if you have an 85% and want a 90% with a final worth 20%, you need (90 − 85 × 0.8) ÷ 0.2 = 110% — time to talk to your teacher about extra credit.

Frequently Asked Questions

What if the calculator says I need more than 100%?
A required score above 100% means your desired grade is mathematically out of reach given your current grade and the final's weight. You'd need extra credit or a curve to get there. The calculator will still show the exact number so you know how far off you are.
What if I need less than 0%?
That means you've already secured your desired grade — you could skip the final and still get the grade you want. Celebrate, but maybe take the final anyway to boost your grade even higher.
Can I use this for any class?
Yes, as long as your grade uses a weighted percentage system — the most common grading system in US high schools and colleges. If your class uses a points-based system, just calculate the percentage equivalent.
How do I find my final exam weight?
Check your syllabus — it usually lists the percentage breakdown for each category (homework, tests, final, etc.). If you can't find it, ask your teacher. Most finals are worth 15-25% of your overall grade.
Is this calculator accurate?
Yes — the math is straightforward weighted-average arithmetic. The only potential issue is if your teacher uses a non-standard grading system (curves, dropped grades, etc.). Check your syllabus to confirm the grading breakdown.