Dropped Lowest Grade Calculator

What does a dropped lowest grade calculator do?

A dropped lowest grade calculator shows how a category average changes when the lowest quiz, assignment, lab, or test score is removed. Many classes use this policy to reduce the effect of one unusually low score.

What is the drop lowest grade formula?

First calculate the average before the drop. Then remove the lowest eligible score or scores and calculate the average again. With equal percentages, the formula is average after drop = sum of kept scores ÷ number of kept scores.

Should I drop the lowest percentage or lowest points?

Use the method in your syllabus. Dropping the lowest percentage is common when items are equally weighted. If assignments have different point values, a gradebook may drop the item that helps the student most, the lowest raw percentage, or the lowest weighted contribution.

What scores are usually not eligible to drop?

Teachers may exclude final exams, major projects, missing work, academic integrity penalties, or late assignments from drop policies. This is why the calculator includes a policy warning instead of treating every score as automatically droppable.

How does dropping a score affect course grade?

If the dropped-score category has a course weight, the improved category average changes the final course grade by the category change times the category weight. For full course modeling, use the Course Grade Calculator.

What is the biggest mistake with dropped-score rules?

The biggest mistake is assuming the calculator can override gradebook eligibility rules. Always check whether the lowest score is actually eligible before expecting the official grade to change.

Frequently asked questions

• Can I drop more than one score?
  Yes. Enter the number of lowest scores to drop.
• Can I use points instead of percentages?
  Yes. Enter earned/possible pairs such as 18/20, 42/50.
• What if all scores are equal weight?
  Enter them as percentages and drop the lowest percentage.
• Can a zero be dropped?
  Only if the course policy allows missing or zero scores to be dropped.
• Why does the gradebook differ?
  The gradebook may use weighted categories, eligibility rules, or a different drop method.
• Can the calculator drop the highest score too?
  This page focuses on dropping the lowest score because that is the common student-facing policy.