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: Roelf Harms Thoma
(1796 Veendam, Groningen, Nederland - Yes, date unknown)
Mother: Louke Geerts Vegter
(1795 Veendam, Groningen, Nederland - Yes, date unknown)
Geert Thoma
(06 Jan 1821 Veendam, Groningen, Nederland - 05 Apr 1905 Wildervank, Groningen, Nederland)
Elsje Stoffers Kaaloor
(30 May 1820 Zuidbroek, Groningen, Nederland - 07 May 1895 Wildervank, Groningen, Nederland)
         ├─ Stoffer Thoma
(26 Oct 1852 Borgercompagnie, Veendam, Groningen, Nederland - Yes, date unknown)
         ├─ Louke Thoma
(10 Sep 1855 Duurkenakker, Muntendam, Groningen, Nederland - Yes, date unknown)
         ├─ Martent Thoma
(01 Nov 1858 Wildervank, Groningen, Nederland - Yes, date unknown)
         │ Geesje Gringhuis
(03 Sep 1853 Ommelanderwijk, Veendam, Groningen, Nederland - 16 Jan 1939 Groningen, Groningen, Nederland)
         │          ├─ Elsina Thoma
(12 Nov 1884 Wildervank, Groningen, Nederland - Yes, date unknown)
         │          └─ Harm Thoma
(09 Aug 1891 Wildervank, Groningen, Nederland - Yes, date unknown)
         └─ Frederik Thoma
(07 Jul 1861 Wildervank, Groningen, Nederland - Yes, date unknown)