Test Grade Calculator

How to use the Test Grade Calculator

Choose question counts or points, then enter the earned and possible values to calculate a percentage and estimated letter grade.

Convert points or questions correct into a test percentage and review the missed amount. This tool is for one assessment with a known earned score and total possible score.

Fieldlet performs the calculation locally. Compare important academic results with the grading policy published by the relevant instructor or institution.

1. Choose whole-question mode or decimal points mode for partial credit.
2. The earned value is divided by the total possible value.
3. That decimal is multiplied by 100 to produce the test percentage.
4. Enable extra credit only when an earned value above the possible value is intentional; Fieldlet then maps the percentage to a common estimated letter-grade scale.

Last reviewed for accuracy: 2026-09-01

Worked examples

How the result is produced

The calculator uses the standard part-over-whole relationship: earned points divided by possible points. It rejects a zero or invalid total because division by zero has no meaningful grade interpretation.

• Grade percentage = earned ÷ possible × 100
• Earned points may include partial credit
• A score above 100% can be valid only when extra credit is intentional

Choose questions or points deliberately

Question mode keeps counts as whole numbers, while points mode accepts decimal partial credit. In either mode, earned and possible values must use the same scoring basis before the percentage has meaning. The extra-credit control must be enabled before an earned value can exceed the stated possible value.

• Use question mode when every item is counted equally.
• Use points mode for weighted items or partial credit.
• Enable extra credit only when the scoring policy actually permits it.
• Apply the class's published letter-grade cutoffs separately.

Limitations and common mistakes

• The displayed letter grade uses a common estimated scale; the teacher's actual cutoffs, curve, and policies control.
• The calculator cannot tell whether omitted questions, penalties, or extra credit were scored correctly.

Common questions