F-Distribution CDF Calculator

F‑Distribution CDF Calculator

Calculate the cumulative probability for an F‑distribution: $$ F(x;d_1,d_2)=I_{\frac{d_1x}{d_1x+d_2}}\Bigl(\frac{d_1}{2},\frac{d_2}{2}\Bigr). $$

* Enter the F‑value $ x $ (x ≥ 0), numerator degrees of freedom $ d_1 $, and denominator degrees of freedom $ d_2 $.

Step 1: Enter Parameters

F‑value, $ x $:

e.g., 1

Numerator Degrees of Freedom, $ d_1 $:

e.g., 5

Denominator Degrees of Freedom, $ d_2 $:

e.g., 10