Percentage Calculator
Choose the type of percentage calculation you need with our versatile online percentage tool.
What is an online Percentage Calculator?
An online Percentage Calculator helps you solve common percentage problems without doing the calculations manually. You can use it to find a percentage of a number, determine what percentage one number represents of another, calculate percentage changes, and work out discounts.
It is useful for everyday calculations such as comparing values, checking discounts, calculating tips, reviewing changes in prices, or working with percentages in school and work.
How to use the Percentage Calculator
- Select a calculation type: Choose What is X% of Y?, X is what % of Y?, % Change, or Discount.
- Enter your numbers: Add the values required for the selected calculation.
- Calculate the result: Click Calculate or the appropriate calculation button to see the result.
- Review the answer: The result appears immediately below the calculation fields.
Percentage calculations you can make
- What is X% of Y? Find a percentage of a specific number. For example, 20% of 500 is 100.
- X is what % of Y? Determine what percentage one value represents of another. For example, 75 is 25% of 300.
- Percentage change: Compare an original value with a new value to see the percentage increase or decrease.
- Discount: Enter an original price and discount percentage to calculate the amount saved and the final price.
Why use an online Percentage Calculator?
A Percentage Calculator can save time when you need to perform several percentage calculations or want to avoid manual arithmetic. It provides quick results in a simple interface that works across desktop and mobile devices.
It can also be useful as a learning aid because the calculation type makes it easier to understand what the numbers represent before reviewing the result.
Frequently Asked Questions (FAQ)
Yes. The Percentage Calculator is free to use and does not require an account or registration.
Select the Discount tab, enter the original price and discount percentage, and click Calculate Discount. The tool will show both the amount saved and the final price.
Select the % Change tab, enter the original value and the new value, and click Calculate % Change. The result shows whether the value increased or decreased and by what percentage.
Yes. The calculator accepts decimal values for the supported calculations, so you can work with both whole numbers and decimals.
No. The calculations are performed directly in your browser using JavaScript. The numbers entered into the calculator are not sent to a server as part of the calculation process.
For a broader explanation of percentages and their everyday applications, you can explore Math Is Fun's guide to percentages . You can also try our Calculator or Loan Calculator for other numerical tasks.