Pearson Correlation (r)
Calculate Pearson Correlation (r) instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.
Pearson Correlation (r)
x₁
y₁
x₂
y₂
Pearson r
1
More about: Pearson Correlation (r)
What it calculates
The “Pearson Correlation (r)” calculator computes Pearson r from 4 parameters: x₁, y₁, x₂, y₂.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters x₁ = 1, y₁ = 2, x₂ = 2, y₂ = 4 the result is 1 (Σ(x−x̄)(y−ȳ) / √(Σ(x−x̄)²·Σ(y−ȳ)²)).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.