Test Grade Calculator
Enter the points you earned and the points available — get your percentage and letter grade instantly.
Just a ratio
Your grade is the points you earned divided by the total, turned into a percentage.
Scales vary
This uses the standard US A–F scale; your teacher may weight, curve, or use a different scale.
How do I calculate a test grade?
Points earned over total, as a percentage
A test grade is the share of available points you earned, written as a percentage and then mapped to a letter. Take the points you scored, divide by the total points the test was worth, and multiply by 100. According to common US grading practice, that percentage then maps to a letter — A, B, C, D, or F. This calculator does both steps for you and shows the letter alongside the percentage so you know exactly where you stand.
The percentage is a single division turned into a percent, and the letter follows fixed cut-offs.
percentage = (points earned ÷ total points) × 100Once you have the percentage, the letter comes from the standard US bands: 90% and above is an A, 80–89% a B, 70–79% a C, 60–69% a D, and below 60% an F. Because the bands are inclusive at the bottom, a score landing exactly on a cut-off — say 80.0% — earns the higher letter.
Suppose you scored 42 points on a test worth 50.
Divide the points
42 ÷ 50 = 0.84.Turn it into a percent
0.84 × 100 = 84%.Read the letter
84% falls in the 80–89% band, so the grade is a B.
The percentage tells you precisely how much of the test you got right, while the letter places that figure on the familiar US A–F scale. Treat the letter as a quick summary and the percentage as the exact measure — useful for seeing how close you are to the next band. Other systems differ: many courses apply a curve or weight harder questions more, and the German scale runs 1 to 6 with 1 as the best mark rather than A to F. When the stakes matter, check your own course's grading policy against this baseline.
The percentage is exact; the letter assumes one common scale.
Assumes the standard US A–F scale
This calculator computes the percentage exactly, but the letter grade uses the standard US A–F cut-offs (90/80/70/60). Many teachers weight questions, drop the lowest score, apply a curve, or use a plus/minus scale, and other countries use entirely different systems. Use the percentage as the reliable figure and confirm the letter against your course's own grading policy.