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":
Johannes Alexander Gerth
(12 Jun 1859 Papenburg, Niedersachsen, Deutschland - 07 Nov 1944 Emmen, Drenthe, Nederland)
Anna Helena Tiben
(27 Mar 1866 Braamberg, Onstwedde, Groningen, Nederland - 01 Feb 1950 Emmen, Drenthe, Nederland)
         ├─ Johanna Alexandrina Gerth
(24 Mar 1889 Emmer-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
         │ + Jan Hindrik Schulte
(28 May 1887 Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
         ├─ Johan Willem Gerth
(13 Aug 1891 Emmer-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
         ├─ Johan Herman Gerth
(17 May 1894 Emmer-Compascuum, Emmen, Drenthe, Nederland - 24 Nov 1955 Emmen, Drenthe, Nederland)
         │ Anna Helena Robben
(15 May 1893 Barger-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
         │          └─ Johan Herman Gerth
(11 Dec 1926 Emmen, Drenthe, Nederland - 15 Dec 1926 Emmen, Drenthe, Nederland)
         ├─ Geertruida Gerth
(12 Sep 1896 Emmer-Compascuum, Emmen, Drenthe, Nederland - 09 May 1967 Emmen, Drenthe, Nederland)
         │ + Geert Harm Robben
(12 Oct 1899 Barger-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
         └─ Anna Maria Wilhelmina Gerth
(Cal 1910 Barger-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)
          + Gradus Robben
(28 Mar 1907 Barger-Compascuum, Emmen, Drenthe, Nederland - Yes, date unknown)