Percentage Calculator
Calculate percentages, percentage increases, decreases, and ratios with step-by-step breakdowns
How to Use This Tool
Choose your calculation type from the tabs: basic percentage, percentage of a number, percentage change, or percentage difference.
Enter your values in the input fields.
View the result instantly — all calculations update in real time.
Use the "Copy" button to copy any result.
About This Tool
Percentage Calculator handles all common percentage operations in one tool. Calculate what percentage one number is of another, find a percentage of any number, compute percentage change between two values, or find the percentage difference. The four-mode design covers every percentage scenario you might encounter — from calculating discounts and tips to analyzing data changes and financial growth. All calculations are instant and run locally in your browser.
Frequently Asked Questions
Percentage change measures the increase or decrease from an original value to a new value. Percentage difference compares two values without treating either as the 'original' — it uses the average of both as the base.
Use the 'Percentage of a number' mode. Enter the original price and the discount percentage to find the discount amount. Subtract from the original to get the sale price.
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