Percentage Calculator
Multi-function percentage calculator for values, ratios, and changes.
ℹ️ Calculate what is X% of Y
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Calculate what is X% of Y
Enter values to start
📚Formula & Example
Percentage Value
X% × Y
Ex: What is 20% of 500?
0.20 × 500 = 100
Percentage Ratio
A ÷ B × 100%
Ex: 50 is what % of 200?
50 ÷ 200 = 25%
Percentage Change
(B - A) ÷ A × 100%
Ex: Change from 100 to 150?
(150 - 100) ÷ 100 = 50%
About This Tool
Free online percentage calculator. Calculate percentage values, ratios, and percentage changes (increase/decrease). Simple and real-time.
Features
- 🔢 Percentage Value: Calculate what is X% of Y
- 📊 Percentage Ratio: Calculate A is what percent of B
- 📈 Change Rate: Calculate percentage increase or decrease
- ⚡ Real-time: Instant results as you type
- 📋 Quick Copy: One-click copy results
- 📱 Responsive: Works perfectly on mobile and desktop