2 acre homestead. Pond size.

I have a 2 acre homestead. My house sits on the southernmost acre. I’d like to add a pond on the back acre. I will also have a small fruit tree orchard that straddles both acres and a chicken coop on the back acre

Looking for advice on pond size. I’m thinking a 1/8 acre pond but I’m having a hard time imagining it. Does anyone have a close to two acre property with a pond? Any input?