Percentage Calculator
Calculate percentages instantly with step-by-step solutions. Trusted by 50,000+ users daily.
Basic Percentage: What is X% of Y?
Example: 20% of 150 = 30
Formula: (20 ÷ 100) × 150 = 30
Live Visualization
Percentage
20%
Value
30
Common Percentages Reference
How to Use Percentage Calculator?
Select Type
Choose calculation type from 4 options
Enter Numbers
Fill in the required values
Click Calculate
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Save Results
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Frequently Asked Questions
How do I calculate percentage of a number?
To calculate X% of Y, multiply Y by X and divide by 100. For example, 20% of 150 = (20 × 150) ÷ 100 = 30.
How to calculate percentage increase?
Percentage increase = [(New Value - Original Value) ÷ Original Value] × 100. For example, from 100 to 150 is a 50% increase.
Is this calculator really free?
Yes, it's completely free! No registration, no hidden charges. Use it as many times as you want.
Can I save my calculations?
Yes, click the "Save Result" button to bookmark your calculation. Results are saved in your browser.