Example: 15% of 200 30. Change the values above to calculate your own.
About the Percentage Calculator
Choose the kind of percentage question you have from the menu, enter the two numbers and read the answer. The extra rows show the related calculations so you can check your thinking.
How to use the Percentage Calculator
- Enter your numbers (or keep the example).
- The result updates instantly as you type.
- Copy the result, or copy the link: it keeps your numbers so you can share them.
Common percentages of 100, 250 and 1,000
| Percent | of 100 | of 250 | of 1,000 |
|---|---|---|---|
| 1% | 1 | 2.5 | 10 |
| 5% | 5 | 12.5 | 50 |
| 10% | 10 | 25 | 100 |
| 12.5% | 12.5 | 31.25 | 125 |
| 15% | 15 | 37.5 | 150 |
| 20% | 20 | 50 | 200 |
| 25% | 25 | 62.5 | 250 |
| 30% | 30 | 75 | 300 |
| 33.33% | 33.33 | 83.325 | 333.3 |
| 40% | 40 | 100 | 400 |
| 50% | 50 | 125 | 500 |
| 75% | 75 | 187.5 | 750 |
How it's calculated
X% of Y = X ÷ 100 × Y. X as a percent of Y = X ÷ Y × 100. Percentage change = (new − old) ÷ |old| × 100.
Features
- Instant resultsUpdates as you type.
- Shareable linkThe URL keeps your inputs.
- Reference tableCommon values on this page.
- Works offlineRuns in your browser.
Frequently asked questions
How do I calculate 15% of 200?
Multiply 200 by 0.15: the answer is 30.
How do I work out a percentage increase?
Subtract the old value from the new value, divide by the old value and multiply by 100.
Is the Percentage Calculator free?
Yes, the Percentage Calculator is free with no sign-up, no limits and no ads covering the result.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.
Last updated · Processing happens locally in your browser.