If AL value is known then the inductance can be calculated as:
|$$ L = A_L ⋅ N^2 $$||(H)|
Note: the AL value is typically specified just in the units of inductance e.g. (nH), without the square turns. If this is the case just select the corresponding unit, e.g. (nH/t2).
(See also the calculator of AL value from inductance and number of turns).