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: Fouke Hooijtes Gnodde
(1726 Sappemeer, Groningen, Nederland - Yes, date unknown)
Mother: Egbertien Jans Bieze
(1733 Sappemeer, Groningen, Nederland - 07 Nov 1821 Sappemeer, Groningen, Nederland)
         │          │          │ + Christina Willemina Burgers
(16 Sep 1871 's-Gravenhage, Zuid-Holland, Nederland - Yes, date unknown)
         │          │          ├─ Jan Roemers
(28 Aug 1872 Leek, Groningen, Nederland - 23 Dec 1933 's-Gravenhage, Zuid-Holland, Nederland) =>
         │          │          │ + Catharina Margareta Rapati
(Abt 1872 's-Gravenhage, Zuid-Holland, Nederland -          │          │          │ 21 Feb 1921 's-Gravenhage, Zuid-Holland, Nederland)
         │          │          └─ Christina Roemers
(23 Nov 1874 's-Gravenhage, Zuid-Holland, Nederland -          │          │           Yes, date unknown bur.Peperga, Weststellingwerf, Friesland, Nederland)
         │          ├─ Aaltje Roemers
(13 Mar 1840 Groningen, Groningen, Nederland - 26 Jun 1895 Groningen, Groningen, Nederland)
         │          └─ Elisabeth Roemers
(02 Aug 1841 Groningen, Groningen, Nederland - 22 Nov 1914 Groningen, Groningen, Nederland)
         └─ Foeke Hooites Gnodde
(25 Aug 1807 Sappemeer, Groningen, Nederland - Yes, date unknown)