Percentage Calculator

A Percentage Calculator helps you solve everyday percentage questions without doing the formula by hand. Use it to find a percentage of a number, calculate what percent one value is of another, and measure percentage increase or decrease between two values.

This Percentage Calculator focuses on the three calculations people need most often, with separate inputs for each formula so the result is easy to understand.

• Find what 15 percent, 20 percent, or any custom percentage of a value equals.
• Calculate what percentage one number represents out of a total.
• Measure percentage change from an old value to a new value.
• See increases and decreases clearly without switching tools.

Choose the card that matches your question, enter the numbers, and read the result instantly. The Percentage Calculator updates as you type, so you can compare several values quickly.

Use the Percentage Calculator for discounts, tax estimates, grade ratios, marketing metrics, price changes, salary increases, finance checks, recipe scaling, and quick comparisons in spreadsheets or reports.

For percentage change, enter the original value in the From field and the new value in the To field. A positive result means an increase, while a negative result means a decrease.

The Percentage Calculator runs in your browser. Your numbers are processed locally for the calculation and do not need to be sent to a server.