Percentage Calculator — Calculate Percentages Instantly

Free percentage calculator. Calculate percentages, percentage change, percentage increase/decrease, and tip splits. Instant results.

What is X% of Y?

% of = —

X is what % of Y?

is what % of = —

Percentage Change

From to = —

About the Percentage Calculator

This percentage calculator handles all types of percentage calculations instantly.

Types of Calculations

Common Formulas

To find X% of Y: multiply Y by X/100. To find what percent X is of Y: divide X by Y, multiply by 100. To find percentage change: (new - old) / old x 100.

Everyday Uses