Home

Percentage Calculator

Solve any percentage problem instantly. Perfect for discounts, tips, tax, and more.

% of

Result

...

is what % of

Result

...

to

Result

...

Why Use This Tool? ✅

Versatile

Handles all the most common percentage problems in one convenient, tabbed interface.

Accurate & Instant

Get reliable, real-time answers as you type, with no need to even press a button.

For Everyday Life

Perfect for calculating store discounts, restaurant tips, sales tax, or budget changes.

For Business & School

An essential tool for figuring out profit margins, growth rates, or academic scores.

Mastering Percentages: A Practical Guide 📊

Percentages are a fundamental part of our daily lives, used to express proportions and changes in a way that is easy to understand. From a 25% discount on a pair of shoes to a 3% rise in interest rates, they are everywhere. This tool is designed to make any percentage calculation simple and intuitive.

Calculation 1: What is X% of Y?

This is the most common percentage problem. It's used to find a part of a whole. For example, "What is 20% of $150?". This is essential for calculating tips, taxes, and discounts.

Formula: Result = (Percentage / 100) * Base Number
Example: (20 / 100) * 150 = 30

Calculation 2: X is what percent of Y?

This calculation is used to express one number as a percentage of another. For example, "You answered 45 questions correctly out of 50. What is your score?". This helps in understanding proportions.

Formula: Percentage = (Part / Total) * 100
Example: (45 / 50) * 100 = 90%

Calculation 3: What is the percentage increase or decrease?

This is used to measure change over time. For example, "A stock price went from $150 to $180. What was the percentage increase?". This is crucial for tracking growth, profit margins, or price changes.

Formula: % Change = ((New Value - Original Value) / Original Value) * 100
Example: ((180 - 150) / 150) * 100 = 20% Increase

This powerful, all-in-one calculator handles all these scenarios effortlessly, providing you with the exact answers you need without the manual math.