Cohen's f
Calculate Cohen's f instantly with the exact formula and a worked example.
Cohen's f
η² (or R²)
Cohen's f
0.333333
η²
0,1
Cohen's f
0,3333
Effect
large
More about: Cohen's f
What it calculates
The “Cohen's f” calculator computes Cohen's f from 1 parameter: η² (or r²).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters η² (or R²) = 0.1 the result is 0.3333 (f = √(η²/(1−η²))).
How to use
- Enter η² (or r²) — each field above is adjustable with a slider.
- Cohen's f is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
Related calculators
FAQ
How is Cohen's f calculated?
The Cohen's f calculator computes Cohen's f from η² (or r²). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Cohen's f calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
More calculators in this category
Explore related free tools