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: Luitje van Bon
(29 Apr 1852 Zuidlaren, Drenthe, Nederland - 14 Sep 1897 Sappemeer, Groningen, Nederland)
Mother: Hindrikje Grasmeijer
(18 Aug 1855 Veendam, Groningen, Nederland - 18 Oct 1912 Sappemeer, Groningen, Nederland)
Jan van Bon
(24 May 1885 Hoogezand, Groningen, Nederland - Yes, date unknown)
Harmke Sans
(01 Nov 1887 Windeweer, Hoogezand, Groningen, Nederland - 09 Sep 1957 Sappemeer, Groningen, Nederland)
         ├─ Luitje van Bon
(14 Dec 1908 Sappemeer, Groningen, Nederland - Yes, date unknown)
         │ + Jantina Raterink
(22 Feb 1912 Annerveenschekanaal, Anloo, Drenthe, Nederland - Yes, date unknown)
         ├─ Hinderkien van Bon
(24 Mar 1910 Sappemeer, Groningen, Nederland - Yes, date unknown)
         │ + Hermanus Theodorus Peters
(Cal 1906 Bussum, Noord-Holland, Nederland - Yes, date unknown)
         └─ Anne Hillechiene van Bon
(02 Sep 1913 Sappemeer, Groningen, Nederland - 01 May 1960 Sappemeer, Groningen, Nederland)
          + Aalf Nijborg
(28 Nov 1912 Sappemeer, Groningen, Nederland - Yes, date unknown)