Cohen's kappa
Calculate Cohen's kappa instantly with the exact formula and a worked example.
Cohen's kappa
p₀ (observed agreement)
p_e (expected random)
Cohen's κ
0.7
p₀
0,85
p_e
0,5
κ
0,7
Agreement
good
More about: Cohen's kappa
What it calculates
The “Cohen's kappa” calculator computes Cohen's κ from 2 parameters: p₀ (observed agreement), p_e (expected random).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters p₀ (observed agreement) = 0.85, p_e (expected random) = 0.5 the result is 0.7 (κ = (p₀ − p_e) / (1 − p_e)).
How to use
- Enter p₀ (observed agreement) and p_e (expected random) — each field above is adjustable with a slider.
- Cohen's κ 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.
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FAQ
How is Cohen's kappa calculated?
The Cohen's kappa calculator computes Cohen's κ from p₀ (observed agreement), p_e (expected random). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Cohen's kappa calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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