Percentage Calculator
Calculate percentages, percentage change, increase, decrease, and what percent a number is of another.
What is X% of Y?
X is what % of Y?
Percentage Change
FAQ
Percentage Calculator FAQ
What calculations can I perform?
Three types: "What is X% of Y?" (e.g., 20% of 500 = 100), "X is what % of Y?" (e.g., 25 is 12.5% of 200), and "Percentage change from X to Y" (e.g., 50 to 75 = +50%).
How is percentage change calculated?
Percentage change = ((New Value - Old Value) / |Old Value|) × 100. A positive result means increase, negative means decrease.
Can I calculate discounts with this?
Yes! Use "What is X% of Y?" to find the discount amount. For example, "What is 30% of 1000?" gives you 300 (the discount), so the sale price is 700.
Does it handle decimal percentages?
Yes, you can enter decimal values like 7.5%, 12.25%, or any precision you need. Results are shown with up to 2 decimal places.
Free Percentage Calculator Online
Perform common percentage calculations instantly with our free tool. Three calculation modes: find what percentage one number is of another, calculate a percentage of a number, or find the percentage change between two values. Essential for students, shoppers calculating discounts, financial analysts, and anyone who works with percentages regularly. Results display with up to two decimal places for precision.
How to Use This Tool
- Select the calculation type you need.
- Enter the required numbers in the input fields.
- View the percentage result instantly.
Key Features
- Three calculation modes: % of number, number as % of another, % change
- Handles decimal values and negative numbers
- Useful for discounts, markups, grades, and financial analysis
- Results rounded to 2 decimal places
- No sign-up or installation required
Related tools
Age Calculator
Free online age calculator - calculate exact age in years, months, and days from any date of birth. Get precise age calculation with breakdown by days lived.
Open tool 📅Date Difference Calculator
Free date difference calculator - find the exact difference between two dates in days, weeks, months, and years. Perfect for countdown and duration calculations.
Open tool ⚖️BMI Calculator
Free BMI calculator - calculate Body Mass Index with health category classification (underweight, normal, overweight, obese) and health risk assessment. Health tool.
Open tool Popular 🏦EMI Calculator
Free EMI calculator - calculate monthly loan payments with detailed amortization schedule. Calculate EMI for home loans, car loans, personal loans instantly.
Open tool