Percentage Calculator Online - Calculate % Easily
What is X% of Y?
X is what % of Y?
About Percentage Calculator
Our free online Percentage Calculator helps you solve all types of percentage problems instantly. Calculate what percent one number is of another, find the percentage of any value, or work out percentage increase and decrease. Perfect for calculating discounts, tips, exam scores, profit margins, tax amounts, and growth rates.
How to Use This Tool
What is X% of Y?
Enter the percentage and the total value to find the result. Example: What is 20% of 500? Answer: 100
X is what % of Y?
Enter any two numbers to find what percentage the first is of the second. Example: 50 is what % of 200? Answer: 25%
Instant Results
Results update automatically as you type - no need to click any buttons.
Frequently Asked Questions
How do I calculate a percentage?
To find what percent X is of Y, use the formula: (X ÷ Y) × 100. Example: To find what percent 25 is of 200: (25 ÷ 200) × 100 = 12.5%
How do I calculate 20% of a number?
Multiply the number by 0.20 (or divide by 5). For example: 20% of 150 = 150 × 0.20 = 30. Our calculator does this instantly!
How do I calculate percentage increase?
Percentage increase = ((New Value - Old Value) ÷ Old Value) × 100. Example: Price went from 100 to 120. Increase = ((120-100) ÷ 100) × 100 = 20%
What is the percentage formula for discounts?
Discount Amount = Original Price × (Discount % ÷ 100). Final Price = Original Price - Discount Amount. For 30% off on ₹500: 500 × 0.30 = ₹150 discount. You pay ₹350.
Key Features
- •Calculate Percentage of Any Number
- •Find What Percent X is of Y
- •Real-time Instant Calculations
- •Perfect for Discounts & Sales
- •Exam Score Percentage Finder
- •Works with Decimals
Why Percentage Calculator Matters
Our percentage calculator is essential for students calculating exam grades, shoppers figuring out discounts, businesses computing profit margins, and anyone needing quick percentage math. 100% free, works offline, and gives instant accurate results.