How do I calculate what I need on my final?

Required Final = (Target Grade − Current Grade × (1 − Final Weight)) / Final Weight. For example, if your current grade is 82%, the final is worth 30%, and you want 90%: (90 − 82 × 0.70) / 0.30 = (90 − 57.4) / 0.30 = 108.7%. That means a 90% overall is not achievable in this scenario.

What if the required score is above 100%?

If the calculator shows more than 100%, the target grade is mathematically impossible. You should adjust your target — the calculator also shows what grade you can earn by scoring 100% on the final.

How much does the final exam typically weigh?

Most college courses weight the final exam at 25–40% of the total grade. Check your syllabus for the exact weight. Some courses use a 50% final or a cumulative exam with equal section weights.

What is a weighted grade calculation?

A weighted grade multiplies each component (homework, midterm, final) by its weight percentage, then sums the results. The sum of all weights must equal 100%.

Final Grade Calculator

Calculate the exam score you need to reach your target course grade. Enter your current grade, final exam weight, and goal — get your required final score instantly.

Current Grade ?

Final Exam Weight ?

Target Grade ?

Required Final Exam Score

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Difficulty —

Grade if You Score 0% —

Grade if You Score 100% —

Extended More scenarios, charts & detailed breakdown ▾

Current Grade (%)

Final Exam Weight (%)

Target Grade (%)

Required Final Score

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Difficulty —

Best Possible Grade (100% on Final) —

Worst Case (0% on Final) —

Professional Full parameters & maximum detail ▾

Current Grade (%)

Final Exam Weight (%)

Target Grade (%)

Passing Threshold (%)

Current Cumulative GPA

Course Credit Hours

Required Scores

Required Final Score —

Score Needed to Pass —

Grade Targets

Score for A (90%) —

Score for B (80%) —

Score for C (70%) —

GPA Impact

GPA Points This Course Worth —

Assessment —

How to Use This Calculator

Enter your current grade as a percentage.
Enter the final exam weight (check your syllabus — typically 25–40%).
Enter your target overall grade.
Read the required final exam score and difficulty assessment.

Formula

Required Final = (Target − Current × (1 − Final Weight)) / Final Weight

Example

Current grade 82%, final worth 30%, target 90%: Required = (90 − 82 × 0.70) / 0.30 = 108.7% — not achievable. Adjust target to 85%: (85 − 57.4) / 0.30 = 91.3% — very difficult but possible.

Frequently Asked Questions

Required Final = (Target Grade − Current Grade × (1 − Final Weight)) / Final Weight. For example, if your current grade is 82%, the final is worth 30%, and you want 90%: (90 − 82 × 0.70) / 0.30 = (90 − 57.4) / 0.30 = 108.7%. That means a 90% overall is not achievable in this scenario.
If the calculator shows more than 100%, the target grade is mathematically impossible. You should adjust your target — the calculator also shows what grade you can earn by scoring 100% on the final.
Most college courses weight the final exam at 25–40% of the total grade. Check your syllabus for the exact weight. Some courses use a 50% final or a cumulative exam with equal section weights.
A weighted grade multiplies each component (homework, midterm, final) by its weight percentage, then sums the results. The sum of all weights must equal 100%.

Related Calculators

Sources & References (5) ▾

College Board Academic Planning Guide — College Board
NACADA — Academic Advising Resources — NACADA
Khan Academy — Test Prep and Grade Tracking — Khan Academy
How to Become a Straight-A Student — Cal Newport — Cal Newport
Edutopia — Academic Planning Strategies — Edutopia