Online Percentage Calculator

Simplify percentage calculations with our versatile Percentage Calculator. Whether you're calculating discounts, interest rates, or statistical data, this tool provides quick and accurate results for all your percentage-related problems.

Percentage Calculator

Calculate percentages easily for various scenarios

Select Calculation Type

What is X% of Y?

X is what % of Y?

Percentage Increase

Percentage Decrease

Percentage (X%)

Total Value (Y)

Part Value (X)

Whole Value (Y)

Original Value

New Value

Original Value

New Value

Result

--

About Percentage Calculations

Percentages are used to express how large or small one quantity is relative to another quantity. The word "percent" means "per 100" or "out of 100".

What is X% of Y?
Formula: (X/100) × Y

X is what percent of Y?
Formula: (X/Y) × 100

Percentage Increase
Formula: [(New Value - Original Value) / Original Value] × 100

Percentage Decrease
Formula: [(Original Value - New Value) / Original Value] × 100

Tip: Percentages are commonly used in discounts, interest rates, statistics, and many real-life situations.

Key Features:

✅ Multiple Calculation Types - Four different percentage calculations in one tool

✅ Instant Results - Get answers in seconds with step-by-step formulas

✅ Clean Interface - Easy-to-use design with clear instructions

✅ Educational Value - Learn the formulas behind each calculation

✅ Mobile-Friendly - Works perfectly on all devices

Calculation Types:

What is X% of Y? - Find the percentage of a number

X is what % of Y? - Calculate what percentage one number is of another

Percentage Increase - Determine the percentage increase between two values

Percentage Decrease - Calculate the percentage decrease between two values

How to Use:

Select the type of percentage calculation you need

Enter the required values in the input fields

Click the "Calculate" button

View your result with the formula explanation

Common Uses:

Calculating discounts during shopping

Determining exam scores and grades

Analyzing statistical data

Calculating tax or tip amounts

Measuring growth or decline in business metrics

Educational Value:
Each calculation includes the formula used, helping students understand the mathematical concepts behind percentage calculations. This makes it an excellent learning tool for mathematics students.

Perfect For:

Students learning percentages

Shoppers calculating discounts

Business professionals analyzing dataTeachers creating examples

Anyone needing quick percentage calculations