Quartiles & IQR
Calculate Quartiles & IQR instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Quartiles & IQR
x₁
x₂
x₃
x₄
x₅
IQR
5
More about: Quartiles & IQR
What it calculates
The “Quartiles & IQR” calculator computes IQR from 5 parameters: x₁, x₂, x₃, x₄, x₅.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters x₁ = 1, x₂ = 5, x₃ = 7, x₄ = 10, x₅ = 15 the result is 5 (Q1=5, Q3=10).
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.