Drop Lowest Grade Calculator — Free Tool

How Drop Lowest Grade Works

Many professors offer a "drop lowest grade" policy — especially for quizzes and homework. This means your single worst score is excluded from the final grade calculation. It's a common policy in US college courses and helps students recover from one bad day.

For example, if you scored 88%, 72%, 95%, and 61% on four quizzes, and your professor drops the lowest, your 61% is removed and your quiz average becomes (88+72+95)÷3 = 85%.

Formula

Average = Sum of remaining scores ÷ Number of remaining scores
The calculator automatically sorts your scores, removes the lowest N, and averages the rest.

Example

📊 Drop 1 Lowest Example

Quiz 1: 88%Kept

Quiz 2: 72%Kept

Quiz 3: 95%Kept

Quiz 4: 61% ← LowestDropped ✗

New Average: (88+72+95)÷385.0% → B

Frequently Asked Questions

How does drop lowest grade work?

When a professor drops your lowest grade, they remove your single worst score before calculating your average. This policy is common for quiz grades. Enter all your scores above and the calculator shows your average with the lowest removed.

Can I drop more than one grade?

Yes — use the 'Drop' selector to drop 1, 2, or 3 lowest grades. Some professors drop the 2 lowest quiz scores, for example.

Does it matter which grade is lowest?

The calculator automatically identifies which score(s) are lowest and removes them. You just enter all your grades and it does the work.

Should I include the score I want dropped?

Yes — enter ALL your grades including the lowest one. The calculator will automatically identify and remove the lowest score(s) before calculating your average.

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