Paper Size comparison tool
A
A5
148 x 210 mm
US
Letter
216 x 279 mm
What is the difference between A5 and Letter?
The primary difference between A5 and Letter is that A5 is shorter and narrower (148 × 210 mm) compared to Letter (216 × 279 mm).
In terms of surface area, Letter is 48.4% larger than A5.
An A5 piece of paper measures 148 × 210 mm or 5.8 × 8.3 inches. Cutting it in half will create two A6 sheets of paper. A5 is part of the A series.
A Letter piece of paper measures 216 × 279 mm or 8.5 × 11 inches. Letter is part of the US series.