B5 paper size in mm

What is B5 paper size in mm ?

B5 size in mm is 176x250

The aspect ratio of an B5 paper is 1:1.42,The area of an B5 paper is 44000 mm², Perimeter of an B5 paper is 852 mm, Diagonal line of an B5 paper is 305.74 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