Final Grade Calculator

This calculator works forwards instead of backwards: enter your current grade, the weight of the final exam, and a score you might get on it, and see exactly what your final course grade would be.

Try a few exam scores — a realistic one, a best case and a worst case — to see the range of final grades still possible before you sit the exam.

The formula

Final grade = Current × (1 − exam weight) + Exam score × exam weight

Worked example

A current 85% with a 90% on a final worth 30% finishes at 86.5% — a B on the standard scale used here.

The example is pre-loaded in the result panel — press Calculate with your own numbers to replace it.

Frequently asked questions

How is this different from the Grade Calculator?

The Grade Calculator solves backwards for the exam score a target requires. This one computes forwards: you supply an exam score and it returns the resulting final grade.

Which letter-grade scale is used?

The common scale A ≥ 90%, B ≥ 80%, C ≥ 70%, D ≥ 60%, F below 60%. Your school may use plus/minus or a different cutoff, so treat the letter as a guide.

Category: Everyday Life calculators

Sources & methodology

This calculator applies the formula shown on this page exactly as written, using the standard definitions for its inputs. Results are computed from the values you enter — no data is stored — and are rounded only for display.

Content last reviewed 2026-10-21 by CalcHub Editorial.

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Quick answer