Percentage of a Number
Calculate a specific percentage of any number quickly and accurately.
Percentage Calculator
Calculate percentages, percentage increases, decreases, and changes quickly and accurately. Enter your numbers below to get instant results.
Calculate Percentage
Choose a calculation and enter your values.
Please enter valid numbers.
Result
Your percentage calculation
Result
100
Calculation
20% × 500 = 100
Quick Answer
20% of 500 is 100.
Quick Percentages
FREE ONLINE PERCENTAGE CALCULATOR — NO SIGN UP REQUIRED
Percentage Calculator
Calculate Percentages Quickly and Easily
Calculate percentages, percentage increases and decreases, discounts, changes, and common percentage problems quickly without doing the math manually.
Useful for students, shoppers, businesses, professionals, teachers, researchers, and anyone who needs quick and accurate percentage calculations.
Free to Use
Fast Calculations
Multiple Percentage Types
Browser Based
Quick Tool Overview
The All Free Tool's Percentage Calculator helps you solve common percentage calculations quickly and easily.
Use it to find a percentage of a number, determine what percentage one number is of another, calculate percentage increases or decreases, and solve other everyday percentage problems.
Percentage calculations are useful in shopping, finance, business, education, statistics, budgeting, pricing, and everyday decision-making.
About the Percentage Calculator
What Is a Percentage?
A percentage represents a value as a fraction of 100. The word "percent" means "per hundred," so percentages are commonly written using the % symbol.
Find a Percentage of a Number
To find a percentage of a number, convert the percentage into a decimal and multiply it by the number. For example, 20% of 150 is 30.
Find What Percentage One Number Is of Another
Divide the part by the whole and multiply the result by 100. This helps determine the percentage relationship between two numbers.
Calculate Percentage Increase or Decrease
Percentage change compares the difference between an original value and a new value against the original value. It is commonly used to measure increases, decreases, price changes, and growth.
How the Percentage Calculator Works
Enter the required numbers into the calculator, select the type of percentage calculation you need, and let the tool perform the calculation automatically.
Useful for Everyday Calculations
Percentages appear in discounts, taxes, tips, grades, statistics, business reports, price changes, savings, budgets, and many other everyday calculations.
Key Features
Percentage Comparison
Find what percentage one value represents compared with another value.
Percentage Increase
Calculate how much a value has increased in percentage terms.
Percentage Decrease
Determine the percentage decrease between an original value and a new value.
Discount Calculations
Quickly calculate percentage discounts and understand the resulting price.
Fast Results
Get percentage results instantly without performing calculations manually.
Student Friendly
Useful for homework, grades, mathematics, statistics, and classroom calculations.
Business Friendly
Helpful for pricing, growth rates, reports, sales, margins, and business analysis.
Simple Interface
Designed to make common percentage calculations straightforward and easy to understand.
Browser Based
Use the calculator directly from your browser without installing additional software.
How to Use the Percentage Calculator
Follow these simple steps to calculate percentages quickly and accurately.
Choose the Calculation Type
Select the type of percentage calculation you want to perform.
Pro Tip: Choose the calculation that matches the question you are trying to solve.
Enter the First Value
Enter the required first number into the appropriate calculator field.
Pro Tip: Double-check the number before calculating the result.
Enter the Percentage or Second Value
Enter the percentage or second number required by the selected calculation.
Pro Tip: Do not enter a percentage as a decimal unless the calculator specifically asks for one.
Calculate the Result
Click the calculate button to instantly generate the percentage result.
Pro Tip: The calculator removes the need for manual percentage formulas.
Review the Result
Check the calculated percentage and make sure it answers the question you intended to solve.
Pro Tip: Review the original and new values when calculating percentage changes.
Use the Result
Use the calculated percentage for your homework, shopping, budgeting, business, or other task.
Pro Tip: Keep the original values alongside the result when documenting calculations.
Try Another Calculation
Change the values or calculation type to solve another percentage problem.
Pro Tip: Use the same tool for multiple percentage calculations instead of calculating each one manually.
Verify Important Results
For financial, business, academic, or other important calculations, verify the result before using it.
Pro Tip: Understanding which values represent the original, difference, and percentage is essential for percentage-change calculations.