A5 vs Half Letter: Dimensions and Printable Comparison

A5 is 8.3 mm wider and 5.9 mm shorter than Half Letter. They are different sizes; neither is an exact substitute at actual size.

The dimensions

A5: 148 × 210 mm. Half Letter: 5.5 × 8.5 in, or 139.7 × 215.9 mm. These differences come from converting inches at 25.4 mm per inch and subtracting the dimensions.

What fits on the source sheet

Two A5 pages fit side by side on landscape A4. Two Half Letter pages fit side by side on landscape US Letter. Two A5 pages do not fit on landscape US Letter at actual size.

Printable size comparison sheet →A5 planner size →Half Letter planner size →