Swiss vs Goex

What is the equivalent of 2F and 3F Goex powders in Swiss brand powders? I am in France and the local Vectan brand of BP doesn’t have an equivalent of 3F. It goes from 2F to 4F and I would like to try out some 3F. I can get Swiss brand here, but am not sure of the equivalents.
Thanks

This may help.
https://schuetzenpowder.com/swiss-black-powder/
The European numbering system is essentially backward from the American system, in Europe the higher number the finer the granulation. I believe no.4 is the same as American FFFg.

3F swiss should be marked 3f or number 2 (No2)

All should be marked with F grade followed by (No*) like 2f is 2f (No3)

Here is a link showing the comparison of the numbering systems http://www.blackpowder.ch/powder/shooting-powder

if you look on the can in the link Nobade provided you see the number 4 on the can showing 1.5 fg

What I’m looking for is an equivalent to Goex FFF in Swiss. Buying online you don’t often get to see a picture of the powder. If I want FFF Should I look for no. 2 Swiss?

That is what the chart shows

I found some. Thanks for the help.

Thanks, you guys have sharper eyes than I did this morning!