Percentage Calculator
What is% of?
20.00
is what % of?
20.00%
What is Percentage?
Percentages are one of the most useful mathematical concepts in everyday life. A percentage represents a fraction of 100, making it easy to compare and understand proportions. Whether you're calculating discounts, tips, test scores, or analyzing data, understanding percentages is essential.
Our percentage calculator makes it effortless to solve two common percentage problems:
- Finding a percentage of a number: Calculate what X% of Y equals (e.g., 20% of 100 = 20)
- Finding what percentage one number is of another: Determine what percentage X represents of Y (e.g., 25 is 25% of 100)
This tool is perfect for students, professionals, shoppers, and anyone who needs quick percentage calculations without the hassle of manual math. All calculations happen instantly, and your data stays private on your device.
Frequently Asked Questions
To find what percentage X is of Y, divide X by Y and multiply by 100. For example, if 25 is what percent of 100, you calculate: (25 ÷ 100) × 100 = 25%. Our calculator does this automatically for you!
To find X% of Y, multiply Y by (X ÷ 100). For example, to find 20% of 100, calculate: 100 × (20 ÷ 100) = 20. Simply enter the percentage and the number in our calculator to get instant results.
Absolutely! This calculator is perfect for calculating discounts. For example, if an item costs $100 and is 20% off, enter 20% of 100 to find the discount amount ($20), making the sale price $80.
Percentages are used everywhere: calculating tips at restaurants, figuring out discounts during sales, understanding test scores, tracking investment returns, calculating tax amounts, and analyzing data in business reports.
Our percentage calculator provides precise results with up to 2 decimal places. All calculations are performed instantly in your browser, ensuring accuracy and privacy - your data never leaves your device.