Percentage Calculators

Free, straightforward tools for finding percentages, comparing values, calculating percentage increases and decreases, and solving everyday percentage problems.

Core percentage calculators

Use these calculators for the most common percentage questions. Enter your numbers and get an instant answer with the calculation shown.

Percentage Calculator Find a percentage of a number, determine what percent one number is of another, calculate percent change, or work backward from a percentage decrease. Percentage Increase Calculator Find how much a number has increased as a percentage of its original value. Percentage Decrease Calculator Calculate how much a value has fallen as a percentage of its original value. Percentage Difference Calculator Compare two values without choosing a starting or ending value. Discount Calculator Find savings and sale price after a discount is taken. Original Price Calculator Work backward from a sale price and discount. Percentage Points Find the direct difference between two percentages.

How to use a percentage calculator

Choose the calculator that matches your question, enter the requested numbers, and select Calculate. The tool will show the answer and the formula used to reach it.

Example: To find 15% of 240, enter 15 as the percentage and 240 as the number. The answer is 36.

Learn about percentages

These guides explain the formulas behind common percentage calculations and help clarify related concepts.