Grade Calculator

It uses the common US ten-point-plus-minus scale: 93%+ is an A, 90-92.99% is an A-, 87-89.99% is a B+, and so on down to 60-62.99% for a D-, with anything below 60% scored an F. This is a widely used scale at the high school and college level, but plenty of schools use their own variant -- some set the A cutoff at 94% instead of 93%, and some skip plus/minus grades entirely, so check your syllabus if the exact cutoff matters for your grade.

The GPA output maps directly from the letter grade the percentage falls into, using the standard 4.0 scale: an A is worth 4.0, an A- is 3.7, a B+ is 3.3, and so on down to 0.0 for an F. It is not a separate calculation from the percentage -- once the letter grade is determined, the GPA follows automatically from that same threshold table.

It works backward from your current percentage to the next letter-grade threshold above it, converts that percentage into a raw point total against your entered Total Points Possible, and rounds up -- then subtracts the points you've already earned. That gives the smallest whole number of additional points that would be enough to cross into the next grade band, which is more actionable than just knowing the percentage gap.

Yes -- raising Total Points Possible while your Points Earned stays fixed always lowers your percentage, because the same numerator is being divided by a larger denominator. A higher point total only helps your grade if the extra points earned keep pace with (or exceed) the extra points possible; entering a bigger assignment total alone, with the same score, will show a lower percentage, not a higher one.