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":
Legend:
Magdalena Jacob
(19 Feb 1789 Oberperl, Perl, Merzig-Wadern, Saarland, Germany - 17 Dec 1828 Oberperl, Merzig-Wadern, Saarland, Germany)
Mathias Wehr (11 Mar 1784 Borg, Merzig-Wadern, Saarland, Germany - 1 Jan 1839 Oberperl, Merzig-Wadern, Saarland, Germany)(m. 10 Jan 1812 Perl, Merzig-Wadern, Saarland, Germany)
   ├─Mathias Wehr (1819 - 16 Nov 1892)
   │ Anna Maria Theobald (23 Dec 1816 Schengen, Remerschen, Remich, Grevenmacher, Luxembourg - 31 Dec 1897 Clear    │ Creek, Keokuk County, Iowa)(m. 26 Oct 1847 Kerling-lès-Sierck, Moselle, Lorraine, France)
   │    ├─Jean Wehr (29 Dec 1847 Kerling-lès-Sierck, Moselle, Lorraine, France -    │    │ 26 May 1914 Dutch Creek Township, Washington County, Iowa, USA)
   │    ├─Marguerite Wehr (5 Apr 1850 Kerling-lès-Sierck, Moselle, Lorraine, France -    │    │ 17 Jul 1902 Keokuk County, Iowa, USA)
   │    ├─Jean Mathias Wehr (12 Feb 1852 Kerling-les-Sierck, Departement de la Moselle, Lorraine, France -    │    │ 1 Jan 1916 Cawker City, Mitchell County, Kansas, USA)
   │    └─Madeleine Wehr (23 Mar 1854 Kerling-les-Sierck, Departement de la Moselle, Lorraine, France -    │     17 Mar 1926 Sigourney, Keokuk County, Iowa)
   ├─Johannes Wehr (5 Mar 1825 Oberperl, Perl, LK Merzig-Wadern, Saarland, Germany -    │ 21 Oct 1865 Keokuk County, Iowa)
   │ Anna Hammen (29 Aug 1823 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany - 18 Apr 1897 Keokuk County, Iowa)
   │ (m. 1846)
   │    ├─Margaret Wehr (19 Nov 1847 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany -    │    │ 1928 Harper, Keokuk County, Iowa)
   │    │ Michael Peiffer (1844 - 1932)
   │    │    └─John Paul Peiffer ( - 16 Dec 1907) =>
   │    │     + Catherine Adrian (18 Nov 1881 At Home on Farm, Clear Creek Township, Keokuk County, Iowa -    │    │     3 May 1956 St. Joseph Hospital, Ottumwa, Wapello County, Iowa)(m. 21 Jan 1900)