Assignment Weight Calculator
Calculate how many percentage points an assignment contributes to your final subject grade from its score and weighting. Free, instant and no signup.
Your results
Calculation breakdown
- Contribution
- score × weighting ÷ 100
Worked example
Scoring 75% on an assignment worth 25% of the subject contributes 75 × 25 ÷ 100 = 18.75 percentage points towards your overall grade.
Assumptions
- Assumes the score entered is already expressed as a percentage of that assignment's own total marks.
How this calculator works
Enter your score on an assignment and its weighting in the subject to see its exact contribution in percentage points towards your final overall grade.
How an assignment contributes to your final grade
Multiply the assignment score by its subject weighting, then divide by 100. A score of 75% on an assignment worth 20% of the subject contributes 15 percentage points to the final subject result.
The contribution is not the same as the assignment score. A high mark on a small assessment may add fewer final points than a lower mark on a heavily weighted exam or project.
- Contribution = assignment score × weighting ÷ 100
- Enter the weighting shown in the official subject outline
- Convert marks to a percentage first if the task is not marked out of 100
Combine multiple assessments without double counting
Calculate each assessment's contribution and add those contributions to get the secured points so far. Check that all final assessment weightings total 100% before treating the sum as a final course grade.
For several completed assessments, the Weighted Grade Calculator provides a clearer running average. If an assessment is still outstanding, use the Final Grade Needed Calculator to test the score required for a target overall grade.
Frequently asked questions
How is the contribution calculated?
It's your score (as a percentage) multiplied by the assessment's weighting, giving the number of overall percentage points it contributes.
Can this show my running total across the subject?
Enter your other assessments in the Weighted Grade calculator to see a combined running total.
What if the assignment is marked out of a non-100 total?
Convert your score to a percentage first (score ÷ total × 100) before entering it here.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.