Out of Percentage Calculator
Calculate what percentage one number is out of another. Perfect for scores, ratios, and "X out of Y" calculations.
The number you have
The total or maximum value
What is an Out of Percentage Calculator?
An "out of percentage" calculator calculates what percentage one number represents out of a total. It answers questions like "15 out of 20" or "75 out of 100" by converting the ratio into a percentage.
This calculator is perfect for calculating test scores, success rates, completion percentages, and any situation where you need to express a part-to-whole relationship as a percentage.
How to Use the Out of Percentage Calculator
- Enter the part: Input the number you have (e.g., 15 correct answers).
- Enter the total: Input the total or maximum value (e.g., 20 total questions).
- Calculate: Click "Calculate Percentage" to see what percentage the part is of the total.
Common Use Cases
Test Scores
Calculate test scores: "I got 18 out of 25 correct" = 72%.
Success Rates
Calculate success rates: "15 out of 20 attempts succeeded" = 75%.
Completion Percentages
Track progress: "7 out of 10 tasks completed" = 70%.
Survey Results
Analyze responses: "45 out of 60 people agreed" = 75%.
Frequently Asked Questions
How do I calculate "X out of Y" as a percentage?
Divide X by Y, then multiply by 100. For example, 15 out of 20 = (15/20) × 100 = 75%.
Can the part be greater than the total?
No, the part should not exceed the total. If it does, you'll get a percentage greater than 100%, which may not be meaningful in most contexts.
What if I have decimals?
You can enter decimal numbers. For example, 7.5 out of 10 = 75%.
Is this the same as "what percent is X of Y"?
Yes, "X out of Y" is the same as "what percentage is X of Y". Both calculate (X/Y) × 100.
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Cite This Calculator
Reference this calculator on your website or in your work using the citation below:
HTML Citation Code:
<p>Calculator: <a href="https://onlinecalculator.co.uk/percentage/out-of-percentage-calculator" target="_blank">Out of Percentage Calculator</a> - OnlineCalculator.co.uk</p>APA Style Citation:
OnlineCalculator.co.uk. (2025). Out of Percentage Calculator. Retrieved from https://onlinecalculator.co.uk/percentage/out-of-percentage-calculatorNote: This calculator is free to use and reference. No permission required for educational or commercial citation.