Comparison of A-, B-, and C-series paper sizes ( lemmy.ml )

Stety , 10 months ago

Is it just the size difference or is the ratio also different? I am too tired to grab my calculator.

apollo440 , 10 months ago

It’s sqrt(2) for all formats. As you may know, that means you can fold it in half and still have an aspect ratio of sqrt(2).

AmalgamatedIllusions OP , 10 months ago

It’s the same, the difference is the starting “0” size. For the A-series, the area is 1 m^2. For the B-series, the shorter side length is 1 m. The C-series is the geometric mean of the areas of the A- and B-series.