Free Percentage Calculator

Calculate percentages instantly with our free online tool. Perfect for percentage increase, decrease, discounts, tips, and more. No registration required.

Percentage Calculator

Calculation Types

Percentage of a Number

%

Calculation Results

Quick Percentage Calculations

10%
One-tenth
20%
One-fifth
25%
One-quarter
33.33%
One-third
50%
One-half
75%
Three-quarters

Percentage Formulas

Percentage of a Number
Result = (Percentage ÷ 100) × Number
Example: 20% of 150 = (20 ÷ 100) × 150 = 30
Percentage Increase
Increase = [(New Value - Original Value) ÷ Original Value] × 100
Example: From 100 to 150 = [(150-100)÷100]×100 = 50% increase
Percentage Decrease
Decrease = [(Original Value - New Value) ÷ Original Value] × 100
Example: From 150 to 100 = [(150-100)÷150]×100 = 33.33% decrease

Common Percentage Uses

Discounts & Sales

Calculate sale prices and discounts during shopping. Find how much you save during sales.

Tips & Gratuity

Calculate restaurant tips, delivery tips, and service charges accurately.

Growth & Statistics

Analyze business growth, investment returns, and statistical data changes.

Tax Calculations

Calculate sales tax, VAT, income tax, and other percentage-based taxes.

Why Use Our Percentage Calculator?

Instant Calculations

Get accurate percentage calculations in milliseconds. No waiting, no delays, just instant results.

Multiple Calculation Types

Calculate percentage increase, decrease, percentage of numbers, and more with one tool.

No Registration Required

Use all features immediately without creating an account. Completely free with no limitations.

Mobile Friendly

Works perfectly on all devices - desktop, tablet, and mobile phones. Use it anywhere, anytime.

100% Secure & Private

All calculations happen in your browser. No data is sent to servers, ensuring complete privacy.

Learn with Formulas

Understand how percentages work with clear formulas and examples provided for each calculation.

Calculation complete!