Oz. hops?

How many oz. is 5 alpha acid units of williamette hops? What is the formula to get this information? Thanks

It will vary due to the season. Right now Fresh Hops has their’s listed at 4-6%, so 1 oz. would be 4-6%.
If you bought them, the AAU should be on the package, e.g. 4.8% would be for 1 oz.