# Current 72%, final worth 30%, want 75% — Final Grade Calculator

> You have 72% with a final worth 30%. Finishing at 75% requires an 82% on the final — a strong but achievable score. See the full best/worst breakdown.

- **Answer:** Need 82% on the final
- **Category:** Education & Grades
- **Interactive calculator:** https://youcalc.com/en/education-grades/final-grade-calculator/need-on-final-72-want-75/
- **Price:** Free, no sign-up required
- **Full calculator:** [Final Grade Calculator](https://youcalc.com/en/education-grades/final-grade-calculator/)
- **Pre-filled inputs:** `c=72&t=75&w=30`

| Metric | Value |
| --- | --- |
| Current grade | 72% |
| Final weight | 30% |
| Target grade | 75% |
| Required final score | 82% |
| Best possible outcome | 80.4% |
| Minimum guaranteed | 50.4% |


## Overview

Going into finals with 72% and a final worth 30%, an 82% score on the exam will land you at 75%: (75 − 72 × 0.70) ÷ 0.30 = (75 − 50.4) ÷ 0.30 = 82. Notice that even a perfect final only brings you to 80.4%, so aim high but know the ceiling. If you score below 82%, you will finish below your 75% target.

## Method

The required final score is derived from the weighted-average course grade formula: course grade = current × (1 − w) + final × w, where w = finalWeight / 100. Rearranging to isolate the final exam score gives: required = (target − current × (1 − w)) / w. The best-case course grade assumes a perfect 100 on the final; the worst-case assumes 0. Both are computed from the same formula with the final score substituted in. Sources: RogerHub Final Grade Calculator (https://rogerhub.com/final-grade-calculator/) and Calculator.net Grade Calculator (https://www.calculator.net/grade-calculator.html).

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## Sources

- https://rogerhub.com/final-grade-calculator/
- https://www.calculator.net/grade-calculator.html

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Interactive version: https://youcalc.com/en/education-grades/final-grade-calculator/need-on-final-72-want-75/ · From YouCalc — https://youcalc.com