Calculating impedance of a ferrite is not simple, and it is best to refer to the manufacturers data. They will commonly specify impedance at upper and lower frequency limits, and if those are not in the right range, there are tables for extrapolation. The most widely used ferrite formulation is effective at frequencies above about 30 MHz, and is good up to about 1 Ghz. The range of effectiveness shifts with different ferrites. If you want to cover a lower frequency, then you will lose performance at the high end.
Permeability decreases with higher frequency ferrites.
This means that high frequency ferrites will have lower average impedances and lower frequency ferrites will saturate at lower currents. The impedance of the ferrite increases with the square of the number of turns. This is useful when trying to get effectiveness at frequencies below 30 MHz. When the impedance starts to falter, you can put a couple of extra turns on the core. The tradeoff is that winding capacitance will take its toll at higher frequencies.