what size tablecloth for a round table
Standard sizes for common round tables: 1  48 inch round table: 70 inch cloth.  60 inch round table: 90 inch cloth for a drop that goes halfway to the floor, 120 inch for a full drop. For the square-on-round look, an 85 inch square tablecloth is used on to of a 120 inch round tablecloth.
For instance, you have a 60 inch round table and have a 120 inch round tablecloth. Subtract 60 from 120 (120-60=60) then divide by 2 (60/2= 30 inches). This means a 120 inch round tablecloth will cover a 60 inch round table and drop 30 inches off the table, all the way to the floor.