B1 paper size in mm

What is B1 paper size in mm ?

B1 size in mm is 707x1000

The aspect ratio of an B1 paper is 1:1.41,The area of an B1 paper is 707000 mm², Perimeter of an B1 paper is 3414 mm, Diagonal line of an B1 paper is 1224.68 mm

Millimeter is a unit of length and a unit of rainfall, abbreviated in English as mm. 1mm=0.1cm=0.01dm=0.001m=0.000001km=1 000μm=1 000 000nm