How to convert hash to difficulty in X11 algorithm

[timurfirsoiv23]

I'm trying to write a miner for a new modified-X11 algorithm. As the title, my question is how to convert the final hash to difficulty?
I've been googling around but only saw how to convert difficulty & hashrate to $$$ 

Any help is appreciated!!!

[Zorg33]

Diff = 2^N / Hash

Replace N with the binary length of the output of the hash function (usually 256)

[timurfirsoiv23]

oh thanks, I thought that there is a little bit difference in calculating diff between algorithms.