Q.1070: What is A3 sheet size? , What is iso a3?
Ans. As per ISO (International Standard Organization) A series cut sheet sizes, A3 is 297 mm wide and 420 mm long sheet. The total area of A3 sheet is 0.125 square meter (m2). Equivalent size in inches is 11.69" wide and 16.54" long.
Nearest US size is Ledger or Tabloid or ANSI B size which is 11.0" wide and 17.0" long written as 11x17.
Nearest Traditional British size is Ledger or Tabloid which is 11.0" wide and 17.0" long written as 11x17.
For all ISO and US sizes, click here