Calculate percentages quickly and easily
A percentage calculator helps you solve common percentage problems quickly, including finding a percentage of a number, determining what percentage one number is of another, and calculating percentage increase or decrease.
To find a percentage of a number, convert the percentage to a decimal and multiply it by the number. For example, 20% of 150 is 30 because 0.20 × 150 = 30.
Percentage change compares an original value with a new value. A positive result represents an increase, while a negative result represents a decrease. For example, changing from 100 to 120 is a 20% increase.
You can calculate a percentage of a number and common percentage increase or decrease problems.
Yes. It is available online without registration.
Yes. The calculator is designed to work in modern mobile and desktop browsers.