Percentage Calculator - Calculate Percentages Online Free Tool
Calculate percentages, percentage change, discounts, tips, and more. Multiple calculation types with step-by-step results. Free percentage calculator.
Common Calculations
Percentage Calculator
Percentage Formulas
Basic Calculations
Common Uses
- • Calculate discounts and sales prices
- • Determine tax amounts
- • Calculate tips at restaurants
- • Find grade percentages
- • Analyze business growth rates
- • Compare statistics and data
💰 Shopping
Calculate discounts and final prices
📊 Business
Track growth and performance
🎓 Education
Calculate grades and scores
Multiple Types
Six different percentage calculation types.
Instant Results
Get accurate results with detailed explanations.
Mobile Friendly
Works perfectly on all devices and screen sizes.
Examples Included
Quick examples for common calculations.
Frequently Asked Questions
To find what percentage X is of Y, divide X by Y and multiply by 100. For example, to find what percentage 25 is of 100: (25 ÷ 100) × 100 = 25%.
Percentage increase shows how much a value has grown, while percentage decrease shows how much it has shrunk. Both use the formula: ((New Value - Original Value) ÷ Original Value) × 100.
To calculate a discount, subtract the discount percentage from 100%, then multiply by the original price. For a 20% discount on $50: $50 × (100% - 20%) = $50 × 80% = $40.
This calculator handles single percentage calculations. For compound percentages (like compound interest), you need to apply the percentage multiple times or use specialized compound interest formulas.
Our calculator provides results accurate to two decimal places, which is sufficient for most practical applications including financial calculations, grades, and business analytics.