so am new to bitcoin and i want to know how do i calculate this stuff for example i want to send money to a friend of mine and i want to send exactly 85 $ how do i know how many bitcoins i need to send that i mean for fees how do i calculate this stuff thanks in advance and also any good crypto wallets like exouds
Depends on the fees you want to set. 85$ as of right now is 0,01536BTC
With median fees, you should roughly pay ~0.00005921 - 0.33$ if you want to get it confirmed relatively fast.
You can also just broadcast a tx with a 1/sat byte fee, if you don't want to "waste" any money. Downside is that it may take some time to confirm.
^These fees are for legacy outputs. (Not that it really matters that much, but segwit is a bit smaller=cheaper.)
https://www.blockchain.com/btc/tx/cf96bd1ab9f22bf4da2399012fa3c728fb77a80e9c09f753d86d9bc89417704a
thanks man