Percentage Calculator (Free & Easy to Use)
Use this free percentage calculator to quickly solve percentage problems.
Calculate percentages, find percentage increases or decreases, and work out what percentage one number is of another.
Percentage Calculator
How to Use the Percentage Calculator
Select the type of calculation you want to perform from the dropdown menu, then enter your values and click calculate.
What is % of a number: Find a percentage of any value
X is what % of Y: Work out percentages between two numbers
Percentage increase: Calculate growth between values
Percentage decrease: Calculate reductions
Percentage Formula
The basic formula for calculating a percentage is:
Percentage = (Part ÷ Whole) × 100
This formula is used to determine what portion one number represents compared to another.
For example, if you scored 45 points out of 60 on a test, the percentage would be calculated like this:
45 ÷ 60 × 100 = 75%
This means you achieved 75 percent of the total possible score.
Common Uses for Percentage Calculations
Percentages are used in many everyday situations, including:
• Calculating discounts when shopping
• Determining tax amounts on purchases
• Measuring increases or decreases in prices
• Calculating interest rates on loans or savings
• Understanding statistics and data comparisons
A percentage calculator makes these calculations quick and easy without needing to remember formulas or perform manual calculations.
FAQs
How do I calculate a percentage?
Divide the part by the whole and multiply by 100. Enter your values into the calculator and it will instantly show the result.
Can I calculate percentage increase or decrease?
Yes, this calculator supports increases, decreases, and percentage differences.
Is this percentage calculator accurate?
Yes, it uses standard mathematical formulas to ensure accurate results.
Can I use this calculator on mobile?
Yes, this calculator works on all devices including phones and tablets.