Hi,
With increasing frequency you may choose smaller (physically, as well as value) capacitors.
With increasing load ripple you may choose higher value capacitors.
They usually are not calculated ... they ate chosen by experience.
Target is to get stable supply voltage.
But for sure you can calculate them.
The you first need to know: frequency, expected ripple current at this frequency, expected voltage stability (ripple voltage)
* use Oh'm s law to calculate the (max) impedance for the supply source: Z = V_ripple/I_ripple
* use the capacitor_impedance_formula to calculate the (min) capacitance value. C = 1 / ( 2 x Pi x f x Z).
Urgent:
* correct type of capacitor: ceramics X7R --> NP0 (increasing frequency), no electrolytics because they are not suitable for HF
* very short wiring
Klaus
Added:
I just recognized that you talk about IC design. My answer is for PCB layout. :-(