The last beer I made using the refractometer had a OG of 1.065 or 16B. It is now at 1.027 or 6.7B.

Using the online calculator my abv is currently 8.24 or 8% depending on the site.

My adjusted current SG is 1.003

That seems really high to me, I punched my ingredients into a recipe calculator and it said the (i am working on efficiency) OG should be 1.069 and final 1.017 with a abv of 6.77.

I don't have a hydrometer to double check my work. Am I using the calculator wrong or did I just have a amazing fermentation?

Thanks