Standard Paper and Stock Sizes

A Series   B Series  
Size MM Size MM
4A 1682x2378 4B 2040x2880
2A 1189x1682 2B 1440x2040
A0 841x1189 B0 1020x1440
A1 594x841 B1 720x1020
A2 420x594 B2 520x720
A3 297x420 B3 360x520
A4 210x297 B4 260x360
A5 148x210 B5 180x260
A6 105x148    
A7 74x105    
A8 52x74    
A9 37x52    
A10 26x37    
       
RA Series   SRA Series  
Size MM Size MM
RA0 860x1220 SRA0 900x1280
RA1 610x860 SRA1 640x900
RA2 430x610 SRA2 450x640
RA3 305x430 SRA3 320x450
RA4 215x305 SRA4 225x320