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Percentage Calculator

โšก The fastest percentage calculator online. Get instant results with step-by-step solutions. 100% free, no signup required.

What is
%
of
?

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The #1 Percentage Calculator Online

Our percentage calculator is built for students, teachers, and anyone who needs quick accurate calculations. Unlike other calculators that just give you an answer, we show you exactly HOW we calculated it with detailed step-by-step solutions. Perfect for learning, homework, sales calculations, and everyday math. No ads, no signup walls - just instant, accurate results every time.

Percentage Formula

Percentage = (Part / Whole) ร— 100

To find what percentage one number is of another, divide the part by the whole and multiply by 100.

Finding X% of a Number

Result = (Percentage / 100) ร— Number

To find a percentage of a number, divide the percentage by 100 and multiply by the number.

Percentage Change Formula

Change % = ((New - Old) / Old) ร— 100

To calculate the percentage increase or decrease between two values, subtract the old value from the new value, divide by the old value, and multiply by 100.

Examples

Example 1: What is 15% of 80?

(15/100) ร— 80 = 0.15 ร— 80 = 12

Example 2: 45 is what percent of 180?

(45/180) ร— 100 = 0.25 ร— 100 = 25%

Example 3: Percentage change from 50 to 75

((75-50)/50) ร— 100 = (25/50) ร— 100 = 50% increase

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Frequently Asked Questions

Is this percentage calculator really free?

Yes! Our percentage calculator is 100% free with no hidden costs, no signup required, and no annoying popup ads. We believe math tools should be accessible to everyone.

What is the percentage formula?

The basic percentage formula is: Percentage = (Part รท Whole) ร— 100. This calculates what percentage one number is of another.

How do I calculate a discount?

To calculate a discounted price: Discount Amount = Original Price ร— (Discount % รท 100). Then subtract the discount from the original price.

What's the difference between percentage increase and decrease?

Both use the same formula: ((New - Old) รท Old) ร— 100. A positive result means increase, while a negative result means decrease.

Why is PanMaths better than other percentage calculators?

PanMaths provides detailed step-by-step solutions so you actually LEARN, not just get answers. Plus, we're completely free with no ads, no signup, and instant results. We also support history, shareable links, and work on all devices.