There is no x13 calculator on what to mine.
I have search on google but dont find x13 calculator.
Another way to calculate is as follows:
Find : Network Hash Rate = NHR
Your Hash Rate = YHR
Block Reward Rate = BRR
Block Average Time in min = BAT
so for example if:
NHR = 100 TH/s
YHR = 1TH/s
BRR = 5
BAT = 10
Than you should (1440/BAT)*5 = Total daily coin output.(TDCO)
TDCO x (YHR/NHR) = Your daily coin generation
so for above example it would be. 7.2 coin for you per day. (It does not take in account for TXN fees or pool fees etc)
It goes without saying that make sure to convert Hash/Kilo/Mega/Giga/Tera appropriately.
Goodluck
This also doesn't accout for difficulty and luck. But yes it should give at least rough estimate how much coins you make.
And yes i mine some shitcoin which is very profitable and these shitcoins never show up in calculators eitherway.
You dont have to account for difficulty that number is arbitrary its like having another variable.Yes the following calculation should give you rough estimate on expected coin mined per day.