Percentage Calculator

Calculate percentages in multiple ways.

What is X% of Y?

What is % of ?

X is what % of Y?

is what % of ?

Percentage Change

From to

Use Shawon Calculators' free percentage calculator to get instant, accurate results directly in your browser. No data is stored or transmitted — all calculations happen locally on your device for complete privacy.

Percentage Calculator — Free Online Calculator

Calculate percentages, percentage change, and percentage difference. All common percentage formulas in one tool. Free calculator. Part of our Math calculators collection, trusted by students, professionals, and everyday users worldwide.

100% Accurate Uses verified mathematical formulas
Completely Free No registration or payment needed
Private & Secure Data stays in your browser
Works Everywhere Desktop, tablet, and mobile

How to Use This Percentage Calculator

1
Enter Values

Input your numbers into the calculator fields

2
Get Results

Results are calculated instantly as you type

3
Use or Share

Copy results or use them for your needs

Why Choose Shawon Calculators?

🎯
Verified Accuracy

Uses standard mathematical formulas and algorithms verified against professional tools.

🔒
100% Private

Your data never leaves your device. All calculations happen locally in your browser.

💰
Completely Free

No hidden fees, no registration. 51+ calculators available for unlimited use.

📱
Any Device

Responsive design works perfectly on desktop, tablet, and mobile browsers.

Frequently Asked Questions

How do I calculate a percentage?

Enter the part and whole number. The calculator shows what percentage one number is of another, X% of Y, percentage increase/decrease, and more.

What is percentage change formula?

Percentage change = ((New - Old) / Old) × 100. For example, going from 50 to 75 is a 50% increase.

Is it free?

Yes, completely free.

Is my data private?

Yes. All calculations happen in your browser.

Formula Used

Percentage = (Part / Whole) × 100

Find what percentage one number is of another. Also calculates: X% of Y, percentage increase/decrease, and the whole from a percentage and part.

Who Uses This Percentage Calculator?

👨‍💻 Students solving percentage problems in math homework
📊 Shoppers calculating discount savings on sale items
🎓 Business analysts computing profit margins and growth rates
🏢 Teachers grading tests and converting scores to percentages

About Shawon Calculators — Free Online Calculation Tools

Shawon Calculators provides 49+ free online calculators across financial, health, math, developer, date/time, and utility categories. Every calculator runs entirely in your browser — no data is sent to any server, ensuring your financial, health, and personal information stays completely private.

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From mortgage and loan calculators to BMI, calorie counters, and scientific calculators — our tools cover everyday math, finance, health, and development needs. All calculators provide instant results with no registration, no ads interrupting calculations, and no usage limits. Works on Chrome, Firefox, Safari, Edge, and all modern browsers on any device.