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Calculate percentages, percentage change, discounts, tips, and more. Multiple calculation types with step-by-step results. Free percentage calculator.
Calculate discounts and final prices
Track growth and performance
Calculate grades and scores
Six different percentage calculation types.
Get accurate results with detailed explanations.
Works perfectly on all devices and screen sizes.
Quick examples for common calculations.
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.