Paper Drafting Sizes - Comparing ISO Drawing Sheets with U.S. Drawing Sheets

ISO drawing sheets compared with U.S. and Canadian drawing sheets

The table below can be used to compare ISO drawing sheets (based on ISO 216) with to American drawing sheets (based on ANSI/ASME 14.1): 

ISO USA Sizes
Letter Width Length Letter inches
mm inches mm inches
          F 28.0 x 40.0
A0 841 33.11 1189 46.81 E 34.0 x 44.0
A1 594 23.39 841 33.11 D 22.0 x 34.0
A2 420 16.54 594 23.39 C 17.0 x 22.0
A3 297 11.69 420 16.54 B 11.0 x 17.0
A4 210 8.27 297 11.69 A 8.5 x 11.0

Search the Engineering ToolBox

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp

Translate the Engineering ToolBox
About the EngineeringToolbox