Exam Percentile Calculator
Your percentile from mean and standard deviation.
Enter your values
Enter the your score you are working with.
Enter the class mean you are working with.
Enter the standard deviation you are working with.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Percentile
- 86.7%
- Z-score
- 1.11
- Above / below mean
- Above the mean
- Beats
- 87 of every 100 candidates
Quick answer
A percentile shows the share of test takers who scored below you.
z = (score − mean) ÷ SD
At a glance
| What it does | Your percentile from mean and standard deviation. |
|---|---|
| Category | Education |
| Inputs needed | Your score, Class mean, Standard deviation |
| Main output | Percentile |
| Formula | z = (score − mean) ÷ SD |
| Cost | Free — no sign-up, no download |
How to use the Exam Percentile Calculator
- 1Enter your raw score.
- 2Enter the published mean and standard deviation.
- 3Read your percentile.
Inputs explained
- Your score
- Enter the your score you are working with.
- Class mean
- Enter the class mean you are working with.
- Standard deviation
- Enter the standard deviation you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Your score78
- Class mean68
- Standard deviation9
Results
- Percentile86.7%
- Z-score1.11
- Above / below meanAbove the mean
- Beats87 of every 100 candidates
Frequently asked questions
Is percentile the same as percentage?
No — percentile compares you to others, percentage measures correctness.
What if scores aren't normal?
The estimate loses accuracy for very skewed distributions.
What do I need to enter into the Exam Percentile Calculator?
Just 3 values: your score, class mean, standard deviation. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Exam Percentile Calculator work out the answer?
A percentile shows the share of test takers who scored below you. It applies the formula z = (score − mean) ÷ SD and shows the working so you can check each step by hand.
Is the Exam Percentile Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.