Grade Curve Calculator
The simplest curve adds the same number of points to everyone so the average lands where it should. It moves the scale without touching the order, which is exactly why nobody’s rank changes.
Your numbers
Result
82pt
Curve shift
10pt
Change
13.89%
Formula
Result = Score + (Average wanted − Average so far)
The cap at 100 squeezes the top. Students near full marks end up tied, so this curve is a poor fit when the point of the exam is to separate the best.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Score (pt)The points actually scored — only meaningful next to the maximum. | 72 | 0 ~ 100 |
| Average so far (pt)Your average across the tests taken so far. | 65 | 0 ~ 100 |
| Average wanted (pt)The average you want when the term is over. | 75 | 0 ~ 100 |
Step by step
Quick reference table
Results when only Score (pt) changes and everything else stays put.
| Score (pt) | Result (pt) | Curve shift (pt) | Change (%) |
|---|---|---|---|
| 36 | 46 | 10 | 27.78 |
| 54 | 64 | 10 | 18.52 |
| 72 | 82 | 10 | 13.89 |
| 100 | 100 | 10 | 0 |
What each result means
| Result | At default values |
|---|---|
| Result (pt)What the formula gives back — the answer this page is for. | 82 |
| Curve shift (pt)The points added to or taken from everyone alike. | 10 |
| Change (%)How far it moved, measured against the before value. | 13.89 |
Common mistakes
The cap at 100 squeezes the top. Students near full marks end up tied, so this curve is a poor fit when the point of the exam is to separate the best.
Glossary
- Score
- The points actually scored — only meaningful next to the maximum.
- Average so far
- Your average across the tests taken so far.
- Average wanted
- The average you want when the term is over.
- Result
- What the formula gives back — the answer this page is for.
- Curve shift
- The points added to or taken from everyone alike.
- Change
- How far it moved, measured against the before value.
Frequently asked questions
Q. How is Grade Curve Calculator calculated?
Result = Score + (Average wanted − Average so far) — The simplest curve adds the same number of points to everyone so the average lands where it should. It moves the scale without touching the order, which is exactly why nobody’s rank changes.
Q. Can you walk through an example?
With Score 72pt, Average so far 65pt, Average wanted 75pt, the answer is Result 82pt.
Q. What do I need to enter?
Enter Score, Average so far, Average wanted. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Score (pt) moves the answer to Score (pt) 36 → Result (pt) 46 and Score (pt) 100 → Result (pt) 100. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
The cap at 100 squeezes the top. Students near full marks end up tied, so this curve is a poor fit when the point of the exam is to separate the best.
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