calculators
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Percentage Calculator
Easily calculate percentages, such as finding X% of Y or figuring out what % X is of Y.
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What is the Percentage Calculator?
The Percentage Calculator solves three common formulas in real-time: X% of Y, what percentage X is of Y, and percentage change between two values.
Who is the Percentage Calculator for?
Useful for students, shoppers calculating discounts, and financial analysts computing growth rates.
How to Use the Percentage Calculator
- Select calculation type.
- Enter the numeric values.
- View instant percentage result.
Worked Calculation Example
15% of $250 = $37.50. What % is 45 of 180? = 25%. Percentage change from 80 to 100 = +25%.
Frequently Asked Questions
How do you calculate percentage change?
Percentage Change = ((New Value - Old Value) / |Old Value|) × 100.
Is my data sent to a server?
No, the math is done entirely in your browser.