How do I calculate a discount percentage?

To calculate discount: Final Price = Original Price - (Original Price × Discount % ÷ 100). For a 20% discount on $100: $100 - ($100 × 20 ÷ 100) = $80.

Free Online Percentage Calculator

Calculate percentages, discounts, tips, percentage changes, and more with our comprehensive calculator. Features 7+ calculation types, dark mode support, and mobile-friendly design.

Percentage Calculator

Enter percentage, then press "of"

Why Choose Our Calculator?

Trusted by students, teachers, and professionals worldwide

Ad-free

No advertisements or tracking

GDPR Compliant

Privacy-first design

Fast & Private

Instant calculations, no data stored

Teacher Approved

Trusted by educators worldwide

Calculator Features

Percentage of Number

Calculate what percentage of a number equals another number (e.g., 20% of 100)

What Percent Of

Find what percentage one number is of another (e.g., 25 is what % of 100?)

Percentage Change

Calculate percentage increase or decrease between two values

Discount Calculator

Calculate final price after applying percentage discounts

Tip Calculator

Calculate tip amounts and total bill with tip included

Mobile Friendly

Responsive design works perfectly on all devices and screen sizes

How to Use the Percentage Calculator

Select calculation type: Choose from the dropdown menu what type of percentage calculation you need
Enter values: Input the numbers using the calculator keypad or type directly
Get results: The calculator automatically displays the result with a detailed explanation
Try different calculations: Switch between calculation types to explore different percentage problems

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Frequently Asked Questions

How do I calculate a percentage of a number?＋

To calculate a percentage of a number, multiply the number by the percentage and divide by 100. For example, to find 20% of 100: (20 × 100) ÷ 100 = 20. Use our '% of Number' calculator type for this.

How do I calculate percentage change?＋

Percentage change = ((New Value - Old Value) / Old Value) × 100. If a value increases from 50 to 75: ((75-50)/50) × 100 = 50% increase. Use our '% Change' calculator for automatic calculations.

Is this calculator free to use?＋

Yes! Our percentage calculator is completely free to use with no registration required. It works on all devices and includes multiple calculation types for all your percentage needs.

Why is this tool free?＋

We believe everyone should have access to simple, accurate, and fast math tools without barriers. Our mission is to help students, teachers, and professionals solve percentage problems easily, without cost.

Why are there no ads?＋

We know how distracting and frustrating ads can be, especially when you just want to get a quick answer. We built this calculator to be ad-free so you can focus on your calculations and learning, not on popups or banners.

Is my data private?＋

Absolutely. We do not track, store, or sell your data. All calculations are done instantly in your browser, and we are GDPR compliant.

Can I use this calculator on my phone or tablet?＋

Yes! Our calculator is fully mobile-friendly and works perfectly on all devices and screen sizes.

What types of percentage calculations can I do?＋

You can calculate percentage of a number, what percent one number is of another, percentage change, discounts, tips, and more. Switch between calculation types using the dropdown menu.

Who uses this calculator?＋

Our tool is trusted by students, teachers, small business owners, and professionals worldwide. It's featured in educational blogs and recommended by math educators.

How can I support this project?＋

If you find this tool helpful, please leave us a review or share it with friends and colleagues. Your feedback helps us improve and stay ad-free!

Do you plan to add more features?＋

Yes! We are always working to improve the calculator and add new calculation types. If you have suggestions, let us know via the review panel.

Can I use this calculator for business or teaching?＋

Absolutely! Many teachers and business owners use our calculator daily. It's free for personal and commercial use.