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: Jan Baas
(03 Jan 1845 Gasselternijveen, Gasselte, Drenthe, Nederland - 06 Jul 1894 Oude Pekela, Groningen, Nederland)
Mother: Stientje Bakker
(18 Sep 1842 Zevenhuizen, Leek, Groningen, Nederland - 12 Feb 1922 Oude Pekela, Groningen, Nederland)
Geessien Baas
(21 Jan 1872 Musselkanaal, Onstwedde, Groningen, Nederland - 05 Mar 1948 Oude Pekela, Groningen, Nederland)
Jan van der Laan
(27 Sep 1872 Oude Pekela, Groningen, Nederland - 31 May 1960 Oude Pekela, Groningen, Nederland)
         ├─ Stientje van der Laan
(13 Jul 1905 Oude Pekela, Groningen, Nederland - Yes, date unknown)
         │ + Jan Gankema
(02 Apr 1907 Nieuwe Pekela, Groningen, Nederland - Yes, date unknown)
         └─ Jakob van der Laan
(06 Jun 1908 Oude Pekela, Groningen, Nederland - 18 Aug 1973 Oude Pekela, Groningen, Nederland)
          Siebentje Antje Boekhold
(14 Jun 1914 Wedde, Groningen, Nederland - 09 Jan 2006 Blijham, Wedde, Groningen, Nederland)
                   └─ Geesje van der Laan
(Yes, date unknown - Yes, date unknown)