<Tr> <Th> Name </Th> <Th> mm × mm </Th> <Th> in × in </Th> </Tr> <Tr> <Th> 4A0 </Th> <Td> 1682 × 2378 </Td> <Td> 66.22 × 93.62 </Td> </Tr> <Tr> <Th> 2A0 </Th> <Td> 1189 × 1682 </Td> <Td> 46.81 × 66.22 </Td> </Tr> <P> DIN 476 also used to specify slightly tighter tolerances than ISO 216: </P>

What are the measurements of a piece of paper