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Percentage Calculator

Welcome to Calculators and Simulators. Our free online percentage calculator helps you quickly and accurately solve the most common percentage problems — whether you're calculating discounts, tax, tips, or data comparisons.

FAQ

What is a percentage?

A percentage is a way of expressing a number as a fraction of 100. It is commonly used to represent a portion of a whole or to compare two numbers. Percentages are denoted with the symbol "%". For example, if there are 100 cars in a garage and 25 are white, 25% of the cars are white.

How do you calculate a percentage?

Divide the part by the whole, then multiply by 100. For example, if 20 out of 50 apples are red, divide 20 by 50 to get 0.4, then multiply by 100 to get 40%.

Why do percentages matter?

Percentages are used everywhere — from calculating discounts and taxes to measuring changes in stock prices and economic indicators. Understanding percentages helps you make more informed decisions in personal finance and business.

How do I use keyboard shortcuts?

Navigate between fields using the Tab key (forward) and Shift+Tab (backward). Press Enter to trigger a calculation. All three calculators update results automatically as you type.