Correlation Calculator
Measure the strength and direction of a linear relationship between two variables.
- Free Online Tool
- Instant Results
- Mobile Friendly
- No Installation
- Secure & Private
Result
Understanding This Calculator
Pearson Correlation (r)
Measures linear correlation between two sets of data.
- r = 1: Perfect positive correlation
- r = -1: Perfect negative correlation
- r = 0: No correlation
Strength Scale
| 0.7 - 1.0 | Strong |
| 0.3 - 0.7 | Moderate |
| 0.0 - 0.3 | Weak |
Example 1
X: [1, 2, 3], Y: [2, 4, 6]
- Y = 2X (Perfect line)
- Correlation r = 1.0
How to Use
- Enter X values.
- Enter corresponding Y values.
Frequently Asked Questions
How do I use the Correlation Calculator?
Enter your values in the input fields, and the result will appear instantly.
Is this calculator free to use?
Yes, this calculator is 100% free and does not require any registration or subscription.
Is it mobile-friendly?
Absolutely! Our tool is optimized for all devices, including mobile phones, tablets, and desktop computers.