Percentage Calculator

Calculate percentages easily with multiple modes. Find percentages, calculate ratios, percentage changes, discounts, and more.

What is X% of Y?

X is what percentage of Y?

Percentage change from X to Y

Increase or decrease X by Y%

Discount Calculator

Percentage Formulas

  • X% of Y = Y x (X / 100)
  • X is what % of Y = (X / Y) x 100
  • % Change = ((New - Old) / Old) x 100
  • Discounted Price = Original x (1 - Discount% / 100)

What is a Percentage Calculator?

A percentage calculator is a practical tool that helps you perform various percentage-related calculations quickly and accurately. Whether you are figuring out a shopping discount, calculating exam scores, analyzing sales growth, or estimating tips and taxes, this calculator offers five different modes to handle any percentage calculation you might need.

How It Works

The percent calculator performs three types of calculations: (1) B% of A = A × B / 100, (2) A is what % of B? = A / B × 100, (3) A plus/minus B% = A × (1 ± B/100). All calculations use floating-point arithmetic, with results rounded to appropriate decimal places.

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