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: Hindrik Lingbeek
(16 Oct 1859 Nieuwolda, Groningen, Nederland - 14 Jan 1919 Vlagtwedde, Groningen, Nederland)
Mother: Lena Spel
(27 Mar 1861 Woldendorp, Termunten, Groningen, Nederland - 28 Jan 1942 Winschoten, Groningen, Nederland)
Asselina Lingbeek
(03 Aug 1886 Woldendorp, Termunten, Groningen, Nederland - Yes, date unknown)
Jakob Velema
(30 Jan 1884 Vlagtwedde, Groningen, Nederland - Yes, date unknown)
         ├─ NN Velema
(26 May 1908 Winschoten, Groningen, Nederland - 26 May 1908 Winschoten, Groningen, Nederland)
         └─ Aike Velema
(03 Feb 1912 Winschoten, Groningen, Nederland - 13 May 1940 Barneveld, Gelderland, Nederland)
          + Nantje Tuin
(17 Jul 1914 Scheemda, Groningen, Nederland - Yes, date unknown)