Free Online Percentage Calculator Suite
Calculate percentages, percentage change, percentage difference, convert fractions, and split tips — all free, all instant, all private. No signup required.
Percentage Calculators & Converters
Percentage Calculator
Calculate what is X% of Y, X is what % of Y, and X is Y% of what. Real-time results with step-by-step solutions.
Use Calculator →Percentage Change Calculator
Calculate percentage increase or decrease between two values. Perfect for salary raises, price changes, and stock movements.
Use Calculator →Percentage Difference Calculator
Find the percentage difference between two values with visual comparison and step-by-step formula breakdown.
Use Calculator →Fraction to Percentage Converter
Convert any fraction or mixed number to a percentage. Includes common fractions reference table and step-by-step conversion.
Use Calculator →Percentage to Fraction Converter
Convert any percentage to a simplified fraction. Shows GCD simplification steps and handles repeating decimals.
Use Calculator →Tip Calculator
Calculate tips and split bills easily. Preset tip percentages, per-person splitting, and rounding options.
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Learn About Percentages
How to Calculate Percentage — Complete Guide with Examples
Learn how to calculate percentages with step-by-step examples. Covers all three percentage formulas for shopping discounts, tax, grades, and tips.
Read Guide →Percentage Increase & Decrease Formula — Complete Guide
Master the percentage increase and decrease formula with business, finance, and everyday examples. Step-by-step guide with practice problems.
Read Guide →How to Convert Fractions to Percentages — Step-by-Step Guide
Learn how to convert fractions to percentages with visual examples, common conversion table, and practice problems.
Read Guide →🔒 100% Private & Secure
All calculations happen entirely in your browser. No data is ever sent to any server. No cookies, no tracking, no signup required.