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":
Father: Hendrik Kat (Tue 27 Dec 1836 Zaandam (NL) - ??)
Dieuwertje Kat
(Sun 20 Nov 1864 Zaandam (NL) - Wed 2 May 1945 Amsterdam (NL))
Dirk Been (Sat 1 Nov 1862 Aalsmeer (NL) - Fri 23 Oct 1903 Amsterdam (NL))(m. Sun 11 Dec 1887 Zaandam (NL))
   └─Dirk Been (Thu 18 Aug 1892 Amsterdam (NL) - Wed 7 Feb 1945 Siegburg (D))
    Elisabeth van Osnabrugge (Sun 2 Aug 1891 Naarden (NL) - Wed 4 Nov 1964 Amsterdam (NL))
    (m. Wed 27 Nov 1918 Amsterdam (NL))
       └─Dieuwertje Been (Tue 26 Feb 1929 - Sun 10 Jul 2016 Roosendaal (NL))
        Wilhelm Pierre Schmidt (Sun 9 Aug 1925 Nieuwer-Amstel (NL) - Mon 17 Dec 2018 Wouw (NL))