Free Percentage Calculator

The fastest way to calculate percentage increases, decreases, and common math values. Accurate, real-time results for business, finance, and students.

Basic Percentage

What is (%)

Of (Number)

Increase / Decrease

Initial Value

New Value

Value to Percentage

Part (Number)

Total (Whole)

Why Choose PercentFlow?

High-speed accuracy for your daily math.

Instant Results

Calculations happen in real-time as you type. No reload needed.

Secure

Private calculations. No data is ever sent to a server.

Responsive

Works perfectly on mobile, tablet, and desktop screens.

How to Use

Get accurate results in three simple steps.

Select the calculation card that fits your needs.

Enter your values into the input fields.

Watch the result update instantly in the box below.