Education
Missing Assignment Impact Calculator
Use this missing assignment impact calculator when a zero-score assignment has been added to a point-based gradebook and you want to estimate how makeup or partial credit changes the grade.
Points earned before this missing assignment is added to the gradebook.
Points possible before this missing assignment is added.
Total points the missing assignment is worth.
Points you expect to recover after submitting makeup work or partial credit.
Grade after makeup
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- Before missing work
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- If counted as zero
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- After makeup
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What this missing assignment impact calculator solves
This calculator compares three gradebook states: the grade before the missing work, the grade if the missing assignment counts as a zero, and the grade after makeup or partial-credit points are added.
Formula
How to use it
- Enter your current earned points and current possible points before the missing assignment.
- Enter how many points the missing assignment is worth.
- Enter the makeup, late, or partial-credit points you expect to recover.
- Compare the before-missing, zero, and after-makeup grades.
How to read the answer
The grade after makeup is the estimate after the missing zero is replaced by the makeup points you entered. The recovery gain shows how many percentage points the makeup work adds back.
When to use another grade tool
Use the grade calculator for normal point totals, the retake grade calculator when an old score is replaced by a retake, the late penalty calculator when a submitted score loses credit, and the weighted grade calculator when assignments belong to weighted categories.
Common mistakes and edge cases
- Do not use this if the missing assignment is excused instead of counted as zero.
- If the teacher caps makeup credit, enter the capped makeup points rather than the raw score.
- If your class uses category weights, the point-based estimate may not match the official gradebook.
- A large missing assignment can move the grade a lot when only a few points are currently in the gradebook.
Worked examples
Recover most of a missing assignment
A student has 410 out of 500 points, a missing 50-point assignment, and expects 40 makeup points.
Grade after makeup
81.82%
No makeup submitted yet
A missing zero stays in the gradebook until makeup work is submitted.
Grade after makeup
81.54%
Partial credit on a big project
A large missing project is partially recovered with teacher-approved points.
Grade after makeup
84.12%
Missing assignment must be worth points
An assignment with zero possible points cannot be modeled as a missing zero.
Grade after makeup
Error
Frequently asked questions
How much can one missing assignment affect my grade?+
It depends on how many points the assignment is worth compared with the points already in the gradebook. Add the assignment points to the possible points, count zero earned points for it, and compare the new percentage.
How do makeup points change a missing assignment grade?+
Makeup points are added to your earned points while the assignment remains in the possible-points total. The more points you recover, the closer the grade gets to the before-missing percentage.
Is this the same as a late penalty?+
No. A late penalty starts with submitted work and subtracts credit. A missing assignment usually starts as a zero, then adds makeup or partial-credit points if the teacher allows it.
What if the assignment is excused?+
If the assignment is excused, it usually should not be added to the possible-points total. In that case, your before-missing grade may already be the right comparison.
Can this handle weighted categories?+
This calculator assumes a point-based gradebook. Use the weighted grade calculator when homework, quizzes, tests, or projects each have separate category weights.
Related calculators
Retake Grade Calculator
Calculate how a quiz, test, homework, or assignment retake changes your grade average when one earlier score is replaced.
Grade Calculator
Calculate a class grade from points earned, points possible, extra credit, and a target percentage.
Late Penalty Grade Calculator
Calculate the counted grade after a late-work penalty is applied to an assignment, quiz, test, or project score.
Weighted Grade Calculator
Calculate a weighted course grade from category scores and weights, or find the score needed on remaining weighted work.
Final Grade Calculator
Find the score you need on a final exam or project your course grade from a known final score.
Assignment Weight Impact Calculator
Estimate how one upcoming assignment with a direct course weight changes your current course grade.
Last updated: May 16, 2026