School · Grades
Final Grade Calculator
What do I need on the final? Enter your current grade and how much the final is worth to see the score you need for an A, a B, or whatever you're aiming for.
Your result
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How it's calculated
Needed on final = (Target − Current × (1 − Weight)) ÷ Weight
Weight is the final's share of your grade as a decimal (30% = 0.30). Your current grade counts for the rest.
Worked example
You have an 85% and the final is worth 25%. To finish with an 80%: (80 − 85 × 0.75) ÷ 0.25 = (80 − 63.75) ÷ 0.25 = 65% on the final.
What if it says I need more than 100%?
That target isn't reachable on the final alone. Extra credit, a curve, or a different target may be options; ask your teacher.
My class uses points, not percentages.
Turn points into a percentage first: points earned ÷ points possible × 100.