How many tons of barley would you expect from an average size field?

The US average for barley is about 65 bushels per acre, with a test weight of 48 pounds per bushel. This amounts to 3,120 pounds per acre, which is 1.56 tons per acre. Just multiply that times the number of acres in the field and you'll have your answer.

There is no "average size field" in the US. Depending on which part of the country you're in, an average field size can be anywhere from one acre in organic farming areas to as much as 1,000 acres in the plains states.