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What grade do I need to get an B?
An B usually means around 80% overall. Enter your current grade and the final's weight to see the score you need.
How much is an B?
On the common US scale an B is roughly 80–89%. Set your target to 80% (already filled in) and this calculator shows the final-exam score required.
Formula
needed = (target − current × (1 − weight)) ÷ weight. Example: at 78% with a 50% final, to reach an B (80%): needed = (80 − 78 × 0.50) ÷ 0.50 = 82%.
Frequently asked questions
What percentage is an B grade?
An B is typically about 80% and up on the standard US scale, though schools vary.
How do I find the final score I need for an B?
Enter your current grade and the final's weight above — the page computes the required score.
What if an B is out of reach?
If the needed score tops 100%, talk to your instructor about extra credit or adjust your goal.
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