Weighted Grade Calculator
Weighted average grade from assignments and their weights.
Quick answer
- Formula: Weighted grade = Σ (grade × weight) ÷ Σ weights
- Worked example — Weighted average: 82.50% (full example below).
Weighted Grade Calculator
| Weighted average | 82.50% |
| Letter grade | B |
| Total weight entered | 100.0 |
Grades of 90, 85 and 78 weighted 20/30/50 average to 82.5% — a B.
Enter each assignment or category as a grade and a weight, separated by semicolons. The calculator returns the weighted average percentage and the matching letter grade.
Weights do not have to add up to 100 — the result is the weighted sum divided by the total weight, so partial grade breakdowns (only the categories graded so far) still give a correct average for the work entered.
The formula
Worked example
Grades of 90, 85 and 78 weighted 20/30/50 average to 82.5% — a B.
The example is pre-loaded in the result panel — press Calculate with your own numbers to replace it.
Frequently asked questions
What letter-grade scale is used?
A ≥ 90%, B ≥ 80%, C ≥ 70%, D ≥ 60% and F below 60%, a widely used US scale. Individual schools may set different cutoffs.
Can I enter percentages of the course that are not graded yet?
Leave ungraded categories out. The average is normalized by the weights you enter, so it reflects only the work included.
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 by CalcHub Editorial.
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