Percentage Calculator - Calculate Percentages Easily

Free percentage calculator to calculate discounts, tax, tips, interest rates, and more. Calculate "What is X% of Y", "X is what % of Y", percentage change, and percentage increase/decrease.

Calculation Types

• What is Y% of X? - Calculate percentage of a number (e.g., 15% of 100)
• X is what % of Y? - Find what percentage one number is of another
• Percentage Change: - Calculate increase or decrease rate
• Increase/Decrease by %: - Add or subtract a percentage

Common Uses

• Calculate discounts and sale prices
• Calculate tax (VAT, sales tax)
• Calculate tips at restaurants
• Investment returns and interest rates
• Test scores and grade percentages