Test Grade Calculator

This is the calculator for the question every student asks the moment a test comes back: I got this many right out of that many, so what is my grade? The percentage is just the number you got right divided by the total, times 100. Twenty-two out of twenty-five is 88 percent. The letter grade then comes from a scale, and the standard United States scale is what this tool uses by default.

That scale runs in three-point bands for most letters. Ninety and above is an A, eighty to eighty-nine is a B, seventy to seventy-nine is a C, sixty to sixty-nine is a D, and below sixty is an F, with plus and minus grades splitting each band. Some teachers shift the cutoffs, round up at the half point, or drop the plus-minus entirely, so always check your own syllabus. The scale here is the common one, not a rule your school is bound by.

Where this calculator earns its keep is the part beyond the raw percentage. It tells you what each question is worth, so on a twenty-question test every miss costs five points, while on a forty-question test a miss costs only two and a half. That single fact changes how much a careless error stings. It also works out how many you can afford to miss and still land an A, a B, a C, or a passing grade, which is genuinely useful when you are checking your work and deciding whether to keep grinding on a tough question.

Enter the total number of questions or points and how many you got right. Points work as well as questions, so 45 out of 50 reads the same as 45 points of 50. You get the percentage, the letter, the value of each question, and your cushion before the grade drops.