Your result
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Enter your values, then click Calculate result.How this calculator helps
Apply an explicit grade curve to a list of scores by adding points, shifting the highest score or moving the class mean to a target. Add-points mode applies the same entered point adjustment to every score. Highest-to-maximum mode finds the largest original score and adds the gap between it and the maximum to everyone. Mean-shift mode subtracts the original class mean from your entered target mean and applies that difference. These are explicit additive methods; the calculator does not assume that a bell curve, standard-deviation policy or percentile grading scheme should be used for your course.
How to use it
- 1
Choose the stated method or shape and read the labels before replacing the example values.
- 2
Enter the measurements in the exact units shown. Use the inputs described in the methodology below.
- 3
Click Calculate result. Editing inputs keeps the previous submitted result visible until you calculate again.
- 4
Compare the supporting figures with the formula and worked example, then review the method’s specific limitations.
Formula and methodology
Curved score = clamp(original score + shift, 0, maximum). Shift is entered points, maximum − highest, or target mean − original mean.
The calculator applies the disclosed heuristic to values entered on this device. It does not load private admissions data or claim to reproduce an institution's review process.
Worked calculation example
Scores 70, 80 and 90 on a 100-point scale become 80, 90 and 100 when the highest score is shifted to the maximum.
How to interpret your result
This method applies only within the stated scope. Additive curves only, with scores capped at zero and the entered maximum. Institutional grade policies, letter grades and percentile curves are not inferred. The worked scenarios below identify the measurements and conventions needed to interpret the displayed output.
For different inputs or formulas, use Grade Calculator; Weighted Mean Calculator; Mean Standard Deviation Calculator.
Related questions this calculator covers
- grade curve calculator
Scenario comparison
| Scenario | What it shows |
|---|---|
| 70, 80, 90; highest to 100 | curved scores 80, 90, 100. |
| 70, 80, 90; add 5 points | 75, 85, 95. |
| 80, 90, 100; target mean 100 | capped scores 90, 100, 100; actual mean 96.67. |
Common mistakes to avoid
- Mixing percentages and points on different scales.
- Assuming the capped mean always equals the requested target.
- Calling an additive adjustment a normal-distribution curve.
Reproduce the equation shown on this page using the same entered values. Scores 70, 80 and 90 on a 100-point scale become 80, 90 and 100 when the highest score is shifted to the maximum. Keep input units and the selected method with any recorded result. Check unusual measurements rather than relying on extra displayed decimal places.
Additive curves only, with scores capped at zero and the entered maximum. Institutional grade policies, letter grades and percentile curves are not inferred.What can affect the result?
Preparing a class score list
Enter a list separated by commas, spaces or semicolons. Every score must use the same maximum and represent comparable assessment results. Set the maximum to the actual scale, such as 100 or 50. Entering percentages alongside points out of a different maximum distorts the class mean. Missing students and ungraded work should be handled according to the instructor’s policy before using the list. The tool cannot tell whether a blank should count as zero.
Caps and target means
Each curved score is capped at the maximum and floored at zero. Consequently, the final class mean can differ from the requested mean when a shift pushes scores beyond either boundary. The output shows the actual curved mean after caps, making that difference visible. A negative shift is possible in mean-shift mode if the target is below the original mean. The entered parameter itself is non-negative, but subtracting the original mean can create a negative adjustment.
Fair interpretation
A curve changes scores according to a chosen rule; it does not measure whether the assessment was fair or whether students met learning objectives. Review the distribution, scoring rubric and institutional requirements before selecting a rule. Applying a shared additive shift preserves differences until a cap is reached. Students above the cap then share the maximum, which compresses their distinction. Keep the original scores and the rule used so the adjustment can be reviewed.
Privacy and browser processing
Values entered on this page are processed in the current browser session. SolvePilot does not require an account and does not receive the values entered into the calculator. Refreshing or closing the page clears the working values unless the browser itself restores a previous session. Avoid entering identifying or account information because the calculation needs summary values only.
Accuracy and verification
Accuracy depends first on input quality. Confirm definitions, scales, dates and source information before entering a value. Keep an independent record of any result used for planning because this page does not create an official statement or retain a calculation history.
Limits of this estimate
Additive curves only, with scores capped at zero and the entered maximum. Institutional grade policies, letter grades and percentile curves are not inferred.
Sources and review information
Frequently asked questions
Does this calculate a normal-distribution curve?＋
No. It implements three additive score adjustments. A normal-distribution or percentile-based curve needs a specified grading policy and different operations. The visible method selection prevents a generic curve label from hiding which rule changes the scores.
Why is the final mean not my target?＋
Scores that would exceed the maximum are capped, and scores below zero are floored. Those boundaries alter the average after the shift. The calculator displays the actual adjusted mean so you can assess the impact instead of claiming every target can be achieved.
What does highest score to maximum mean?＋
If the best score is 90 and the maximum is 100, ten points are added to every score. If the best score is already 100, the shift is zero. It is an additive adjustment rather than multiplying every score by 100 divided by 90.
Can I enter grades out of 50?＋
Yes. Set the maximum to 50 and use point scores on that scale throughout. A target mean or added-points parameter also uses points on the same scale. Convert percentages first if the source gradebook mixes different assessment maxima.
Is the curved grade an official course result?＋
Only the instructor or institution can establish that. This calculator shows the outcome of a rule you select. It does not decide eligibility, letter grades, rounding policy or how the assessment contributes to a final weighted course grade.