Percentage Calculator
Calculate percentages, ratios, and percentage changes easily with our comprehensive percentage calculator
Calculate Percentages
What is
%of?
—
What percentage
is what % of?
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Percentage change
fromto?
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Increase value
increased by%=
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Decrease value
decreased by%=
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How to Use This Calculator
Step-by-step guide to get accurate results
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Understand Percentages Easily with Our Percentage Calculator
Our Percentage Calculator helps you solve all types of percentage problems instantly. Whether you need to find a percent, calculate increase or decrease, or convert values, this tool makes percentage calculations simple and accurate.
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How to Use the Percentage Calculator
Using the calculator is quick and straightforward. Just enter your values and get instant results without any manual math.
Steps to Use:
Enter the initial value (original number). Enter the percentage you want to calculate. Click Calculate to get the result. For reverse calculations (e.g., 'X is what percent of Y'), choose the corresponding mode. For percentage change, enter Old Value → New Value → Calculate.
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Calculator Modes We Support
The tool offers multiple modes to help you solve different types of percentage problems easily.
Find Percentage
Calculate what percent a number represents.
Percentage of a Number
Find a specific percent of any number.
Percentage Increase / Decrease
Calculate growth or reduction between two values.
Reverse Percentage
Find what percent one number is of another.
Percentage Conversion
Convert percentages to decimals or fractions and vice versa.
Average Percentage
Compute the average of multiple percentage values.
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Key Features
Fast & Accurate Results
Get instant answers for all percentage calculations without using formulas.
Beginner-Friendly Design
Easy to use for students, professionals, teachers, and everyday tasks.
Mobile-Friendly & Free
Works smoothly on all devices with no signup needed.
Reliable & Standard Formulas
Built on standard mathematical rules for trustworthy results.
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Who Can Benefit
Academics & Students
Calculate marks percentage, average percentage, and exam results.
Business & Finance
Analyze profit/loss percentage, interest, and financial growth.
Shopping Discounts
Find discounted prices instantly while shopping.
Data & Reports
Compare values using percent increase or decrease.
Personal Budgeting
Track spending or savings as a percentage of income.
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Example Calculations
Example 1 – What is 25% of 200?
Formula: 25 ÷ 100 × 200 = 50
Example 2 – 40 is what percent of 320?
Formula: 40 ÷ 320 × 100 = 12.5%
Example 3 – Percent Increase
Old Value = 500, New Value = 650 → (650 − 500) ÷ 500 × 100 = 30% increase
Example 4 – Percent Decrease
Old Value = 800, New Value = 600 → (800 − 600) ÷ 800 × 100 = 25% decrease
Example 5 – Average Percentage
70%, 80%, 90% → (70 + 80 + 90) ÷ 3 = 80%
Frequently Asked Questions
What is a Percentage Calculator?
It is an online tool that helps you perform all types of percentage calculations instantly and accurately.
Can I calculate percent increase with this tool?
Yes, the calculator supports percentage increase mode for quick results.
Does it support percent decrease?
Yes, you can calculate decrease percentages easily.
How do I calculate a percentage manually?
Use the formula: Percentage = (Part ÷ Whole) × 100.
Can I convert percentages to numbers or numbers to percentages?
Yes, the tool supports percentage conversion both ways.
Is it free to use?
Yes, the percentage calculator is 100% free and works on all devices.
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