Percentage Calculator

Calculate percentages easily with our free online tool. Find X% of Y, percentage change, increase/decrease, and more with instant results.

What is X% of Y?

%

Result

Answer

125

25% x 500 = 125

Quick Reference

FractionPercentDecimal
1/425%0.25
1/333.33%0.333
1/250%0.50
2/366.67%0.667
3/475%0.75

X% of Y = (X / 100) x Y

X is what % of Y = (X / Y) x 100

% Change = ((New - Old) / Old) x 100

Features

  • Calculate X% of any number instantly

  • Find what percentage X is of Y

  • Calculate percentage increase or decrease

  • Add or subtract percentages from values

  • See step-by-step formulas for each calculation

  • Copy results with one click

  • Quick reference for common fractions

  • 100% free - no registration required

Who Uses This

Students

Calculate grades, exam scores, and homework percentages. Perfect for understanding percentage concepts.

Business & Finance

Calculate discounts, markups, profit margins, interest rates, and investment returns.

Shopping & Sales

Figure out sale prices, tip amounts, and compare deals with percentage discounts.

Data Analysis

Calculate growth rates, statistical percentages, and changes between data points.