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: Jacobus Bentum
(26 Sep 1833 Windeweer, Hoogezand, Groningen, Nederland - 08 Oct 1915 Schildwolde, Slochteren, Groningen, Nederland)
Mother: Wietske Pot
(01 Dec 1838 Windeweer, Hoogezand, Groningen, Nederland - 29 Jul 1891 Windeweer, Hoogezand, Groningen, Nederland)
Abel Bentum
(08 Jun 1870 Windeweer, Hoogezand, Groningen, Nederland - 31 May 1918 Borger, Drenthe, Nederland)
Aaltje Moesker
(19 Feb 1870 Bonnerveen, Gieten, Drenthe, Nederland - 04 Dec 1926 Borger, Drenthe, Nederland)
         ├─ Jacobus Bentum
(02 Dec 1895 Wildervank, Groningen, Nederland - Yes, date unknown)
         ├─ Jan Bentum
(31 Mar 1898 Wildervank, Groningen, Nederland - Yes, date unknown)
         │ + Harmina Jantina Groenwold
(28 May 1900 Gieterveen, Gieten, Drenthe, Nederland - Yes, date unknown)
         └─ Marcus Roelf Bentum
(07 May 1905 Nieuw-Buinen, Borger, Drenthe, Nederland - Yes, date unknown)
          + Trijntje Jantiena Bulthuis
(17 Mar 1905 Bedum, Groningen, Nederland - Yes, date unknown)