Ballpark Figure

Let's say John Doe is at a cocktail party and meets Jane Smith, who runs a contracting company. John mentions that he wants to have his driveway repaved but doesn't know whether that sort of work costs $100 or $10,000. He asks Jane Smith for a ballpark figure, knowing that she hasn't seen the driveway and isn't under pressure to commit to the price. She tells John that driveways generally cost $5,000 or $6,000.

A ballpark figure is not the same as a written estimate or a good faith estimate, which provides detailed costs and is meant to provide reliable disclosure to a customer.