Your semester grade is a weighted average of each grading category. Each category contributes to the final grade in proportion to its weight. If your homework is worth 20% of your grade and you score 90%, that category contributes 18 points to your final percentage.
If your weights do not total exactly 100%, the calculator divides each category score by the sum of all entered weights. This lets you enter partial grades mid-semester without skewing the result.
Suppose your English class has four graded categories. Homework counts 20%, quizzes 20%, the midterm 25%, and the final exam 35%. Your scores are 92%, 85%, 78%, and 88% respectively.
An 85.7% B means you are passing comfortably but have room to improve. If you want an A- (90%), you would need your final exam score to be high enough to compensate for the lower midterm. Try raising the final exam score in the calculator to find the minimum you need.
Researches and verifies the formulas, methodology, and source data behind each calculator on CalculatorFlux. All tools are built and checked against the cited references before publication.