Cramer’s V Coefficient
Cramer’s V coefficient is used to measure the strength of association between two nominal variables. The value of Cramer’s V statistic satisfies the condition $0\leq V \leq 1$.
 $V$ close to 0 indicate that there is a weak association between the two variables
 $V$ close to 1 indicate that there is a strong association between the two variables.
$$
\begin{aligned}
V &= \sqrt{ \frac{\chi^2 /n}{\min(c1,r1)} }
\end{aligned}
$$
where
 $r$ : Number of rows
 $c$ : Number of columns
 $n$ : Total Sample size
 $\chi^2$ : chisquare statistic
Cramer's V Coefficient Calculator  

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