What grade is a 90%? 80%?

Typical US letter grade scale: A = 90–100%, B = 80–89%, C = 70–79%, D = 60–69%, F = below 60%. Exact cutoffs vary by institution.

GPA (Grade Point Average) converts letter grades to a 4.0 scale: A=4.0, B=3.0, C=2.0, D=1.0, F=0. Use our GPA calculator for a full GPA calculation.

Do my weights need to total 100?

No — this calculator normalises your weights. If you enter weights of 25, 25, 25, 25 or 1, 1, 1, 1, the result is the same. It calculates the proportional share of each component.

Grade Calculator — Calculate Your Final Grade

The Grade Calculator computes your weighted average grade across up to four assignments, exams, or grade categories. Most courses weight different components differently — for example, a final exam might count for 40% while homework counts for 20%. Enter each score and its weight to find out your overall grade.

Score 1

Weight 1 (%)

Score 2

Weight 2 (%)

Score 3

Weight 3 (%)

Score 4

Weight 4 (%)

How to Use This Calculator

1
Enter each assignment or category score (out of 100).
2
Enter the corresponding weight (%) for each component.
3
Weights do not need to add up to 100 — the calculator normalises them.
4
Click Calculate to see your weighted average grade.

Frequently Asked Questions

Weighted Grade = (Score₁ × Weight₁ + Score₂ × Weight₂ + ...) / Total Weight. This ensures that components worth more (like a final exam) count more toward the final grade.

Related Calculators

🧮GPA Calculator 🧮Percentage Calculator 🧮Average Calculator