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":
         │          │          ├─ NN Blaauw
(21 Apr 1807 Finsterwolde, Groningen, Nederland - 21 Apr 1807 Finsterwolde, Groningen, Nederland)
         │          │          ├─ Jan Thijes Blaauw
(05 Mar 1810 Finsterwolde, Groningen, Nederland - 30 May 1851 Midwolda, Groningen, Nederland) =>
         │          │          │ + Mensiena Kaspers Twiest
(11 Jun 1806 Winschoten, Groningen, Nederland - 09 Mar 1886 Midwolda, Groningen, Nederland)
         │          │          ├─ Eltjo Theissen Blaauw
(24 Oct 1811 Finsterwolde, Groningen, Nederland - Yes, date unknown) =>
         │          │          │ + Arien Harms Reit
(23 Apr 1810 Beerta, Groningen, Nederland - Yes, date unknown)
         │          │          └─ Matheus Thijes Blaauw
(25 May 1813 Finsterwolde, Groningen, Nederland -          │          │           31 Jan 1881 Oostwold, Midwolda, Groningen, Nederland) =>
         │          │           + Rikste Kuiper
(18 Jan 1812 Bellingwolde, Groningen, Nederland - 05 Sep 1883 Oostwold, Midwolda, Groningen, Nederland)
         │          ├─ Jan Eltjes Zeeman
(31 Aug 1781 Finsterwolde, Groningen, Nederland - 08 Apr 1821 Scheemda, Groningen, Nederland)
         │          │ Eltje Aijkes Tholen
(1776 Midwolda, Groningen, Nederland - 25 Feb 1823 Scheemda, Groningen, Nederland)
         │          │          ├─ Eltjo Jans Zeeman
(28 Sep 1809 Scheemda, Groningen, Nederland - 23 Nov 1875 Noordbroek, Groningen, Nederland) =>
         │          │          │ + Anje Jans Rijssel
(1797 Siddeburen, Slochteren, Groningen, Nederland - 29 Dec 1863 Noordbroek, Groningen, Nederland)
         │          │          ├─ Geertje Eltjes Zeeman
(27 Sep 1811 Scheemda, Groningen, Nederland - 29 Aug 1885 Beerta, Groningen, Nederland) =>
         │          │          │ + Pieter Jans Scheltens
(22 Aug 1815 Nieuw-Beerta, Beerta, Groningen, Nederland -          │          │          │ 12 Feb 1875 Beerta, Groningen, Nederland)
         │          │          ├─ Heiko Jans Zeeman
(22 Dec 1812 Scheemda, Groningen, Nederland - 13 Oct 1832 Scheemda, Groningen, Nederland)
         │          │          ├─ Derk Jans Zeeman
(11 Aug 1814 Scheemda, Groningen, Nederland - 09 May 1844 Vlagtwedde, Groningen, Nederland)
         │          │          └─ Geessijn Jans Zeeman
(25 Dec 1815 Scheemda, Groningen, Nederland - 05 Mar 1817 Scheemda, Groningen, Nederland)
         │          ├─ Sibentje Eltjes Zeeman
(17 Feb 1785 Finsterwolde, Groningen, Nederland - Yes, date unknown)
         │          └─ Berend Eltjes Zeeman
(1786 Finsterwolde, Groningen, Nederland - Yes, date unknown)
         │           Eltjen Hindriks Kamphuis
(24 Dec 1792 Noordbroek, Groningen, Nederland - Yes, date unknown)
         │                    └─ Derk Zeeman
(15 Jan 1829 Noordbroek, Groningen, Nederland - 06 Sep 1886 Muntendam, Groningen, Nederland) =>
         │                     + Johanna Antonij van der Laan
(22 Jun 1821 Muntendam, Groningen, Nederland - 19 Apr 1895 Veendam, Groningen, Nederland)
         └─ Trijnie Wilbrants
(1745 Westerlee, Scheemda, Groningen, Nederland - Yes, date unknown)