The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Portrait
2.75
70
For smart phones, not for printing
Landscape
5.5
140
For smart phones, not for printing
USA & Canada
in.
mm
Letter Portrait
8.5
216
Also Legal Portrait
Letter Landscape
11
279
Legal Landscape
14
356
Also Ledger Portrait
Ledger Landscape
17
432
International
in.
mm
A5 Portrait
5.82
148
A4 Portrait
8.25
210
Also A5 Landscape
A4 Landscape
11.71
297
Also A3 Landscape
A3 Landscape
16.54
420
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
Phillipe Schneider (Abt 1698 Ritzing, Moselle, Lorraine, France - 21 Dec 1775 Kirsch, Moselle, Lorraine, France)
(m. 15 Nov 1729 Kirsch, France)
   └─Susanna Schneider (1730 Ritzing, Moselle, Lorraine, France - 21 Mar 1797 Launsdorf, Saarland, Germany)
    Johannas Berg (26 May 1719 France - 15 Jan 1792 Launsdorf, Saarland, Germany)
    (m. 5 Nov 1748 Launsdorf, Saarland, Germany)
       └─Johann Berg (30 Dec 1758 Ritzing, Moselle, Lorraine, France - ??)
       
           ├─Johannatha Berg (1754 Ritzing, Moselle, Lorraine, France -            │ 14 Mar 1829 Kirsch les Sierck, Moselle, Lorraine, France)
           └─Michael Berg (6 Oct 1806 Alsace-Lorraine, France -             10 May 1886 Clear Creek Township, Keokuk County, Iowa) =>
            + Katherine Hein (7 ARP 1810 Tunsdorf, Rhineland, Prussia, Germany - 2 Jan 1884 Clear Creek Township,             Keokuk County, Iowa)(m. 25 Feb 1832 Tunsdorf, Saarland, Germany)