Is it permissible to transfer zakah a distance of ninety kilometers, and what is the zakah on wheat in kilograms, and is it permissible to pay the equivalent of the wheat in money?

Question:
May Allah reward you with good and do you well. He asks: Is it permissible to transfer zakah a distance of ninety kilometers? What is the zakah on wheat per kilogram? And is it permissible to pay the equivalent of the wheat in money? Please guide us. May Allah reward you with good. The default ruling for zakah is that it is paid in the town where the wealth is, which is where the crops are, as the Messenger (peace and blessings be upon him) said:

Answer:
The default is that the zakah on wealth, the zakah on crops, and the zakat al-fitr are all paid in the town, to the poor of the town. If there is a pressing need to transfer it to another town because that town is in greater need, or because there are no poor people in the town where the wealth is, then there is nothing wrong with transferring it due to that need. As for the nisab (minimum threshold) for grains, as stated in the hadith, it is three hundred sa' (a dry measure of about 3 kg) by the Prophetic sa', for every . So five wasq (sacks) at sixty sa' each reach three hundred sa' by the Prophetic sa'. The Prophetic sa' is approximately three kilograms, and the calculation is based on this.