Free Online Percentage Calculator

Calculate percentages, percentage changes, discounts, and more with our comprehensive percentage calculator. Perfect for students, professionals, shoppers, and anyone who needs quick percentage calculations.

What percentage is X of Y?

Part (X)

Whole (Y)

0%

Enter values to calculate percentage

Percentage Change Calculator

Original Value

New Value

0%

Enter values to calculate percentage change

Calculate X% of Y

Percentage (%)

Value

0

Enter values to calculate result

Quick Calculation Scenarios

💰 Discount Calculator

Calculate sale price after discount

Original Price

Discount (%)

Final Price

🍽️ Tip Calculator

Calculate tip amount and total bill

Bill Amount

Tip (%)

Total Amount

📚 Grade Calculator

Convert score to percentage

Points Earned

Total Points

Grade (%)

Calculation History

No calculations yet. Start calculating to see your history.

How to Use the Percentage Calculator

1. Choose Your Calculation Type

Select from Basic Percentage, Percentage Change, Percentage Of, or Quick Scenarios tabs depending on what you want to calculate.

2. Enter Your Values

Input the numbers in the appropriate fields. The calculator supports decimal numbers and automatically validates your input.

3. View Results Instantly

Results are calculated automatically as you type. You'll see both the answer and the formula used for the calculation.

Why Use Our Percentage Calculator?

Multiple calculation types in one tool
Real-time calculations as you type
Quick scenario templates for common uses
Calculation history to track your work
Mobile-friendly responsive design
Completely free with no registration required