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":
       │    └─Susanna Wehr (17 Jan 1858 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany -        │     8 May 1947 Calhoun County, Iowa)
       │     + Wendell Peiffer (11 Jun 1857 Clear Creek Township, Keokuk County, Iowa - ??)
       ├─Nikolaus Hammen (26 May 1829 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany -        │ 16 Jan 1895 Sehndorf, Germany)
       │ + Katharina Hild (Sehndorf, Germany;11 Mar 1836 - 23 Jan 1893)(m. 28 Feb 1861 Perl, Germany)
       ├─Margaretha Hammen (9 Mar 1830 Germany - 9 Mar 1872 Feyen, Germany)
       │ Michael Peter Hammes, Jr (10 Nov 1820 Perl, Merzig-Wadern, Saarland, Germany -        │ 12 Apr 1880 Clear Creek Township, Keokuk County, Iowa)(m. 5 Jan 1850 Perl, Merzig, Wadern, Germany)
       │    ├─Nicholaus Hammes (16 Nov 1850 Feyen, Near Trier, Rineland-Pfalz, Germany -        │    │ 7 Sep 1911 Harper, Keokuk County, Iowa) =>
       │    │ + Catherine Bohr (30 Nov 1855 Keokuk County, Iowa - 29 Apr 1930 At Home on Farm, Clear Creek Township,        │    │ Keokuk County, Iowa)(m. 10 Apr 1877 Keokuk County, Iowa)
       │    ├─Peter Hammes, Sr. (26 May 1852 Feyen, Near Trier, Merzig-Wadern, Germany -        │    │ 20 Apr 1929 Keokuk County, Iowa) =>
       │    │ + Anna Rosalia Buch (2 May 1859 Talleyrand, Keokuk County, Iowa -        │    │ 27 Aug 1929 bur.Clear Creek Township, Keokuk County, Iowa)(m. 19 Apr 1877)
       │    ├─Anna Marie Hammes (4 Aug 1854 Feyen, Near Trier, Rineland-Pfalz, Germany -        │    │ 24 Jan 1912 St. Joseph Hospital, Omaha, Douglas County, Nebraska) =>
       │    │ + Matthias S Leinen, Jr (3 Nov 1849 Tunsdorf, Mettlach, Saarland, Germany -        │    │ 21 Feb 1929 Portsmouth, Shelby County, Iowa)(m. 25 Nov 1874)
       │    ├─Jacob W Hammes (8 Oct 1856 Feyen, Near Trier, Germany - Feb 1924 Harlan, Shelby County, Iowa) =>
       │    │ + Mary Josphine Weber (29 Jan 1860 - 15 Nov 1941)(m. 29 Aug 1878)
       │    ├─Margareta Hammes (26 Sep 1859 Feyen, Near Trier, Rineland-Pfalz, Germany -        │    │ 24 Oct 1924 Hospital, Rochester, Olmstead County, Minnesota) =>
       │    │ + Nicholas Jacobs, Sr. (14 Sep 1851 Baden, Germany - 7 Dec 1918 Portsmouth, Shelby County, Iowa)
       │    │ (m. 26 Feb 1878 Sigourney, Keokuk County, Iowa)
       │    │ + Susan Ludwig (Oct 1860 Keokuk County, Iowa - 1937)(m. 1888)
       │    ├─John J Hammes (22 May 1863 Feyen, Near Trier, Rineland-Pfalz, Germany -        │    │ 20 Aug 1938 Pocahontas, Pocahontas County, Iowa) =>
       │    │ + Barbara Leinen (11 Nov 1865 Clear Creek Township, Keokuk County, Iowa - 9 Feb 1942)
       │    ├─Michael Alfred Hammes, III (10 May 1865 Trier, Rheinland-Pfalz, Germany -        │    │ 16 Feb 1938 Harlan, Shelby County, Iowa) =>
       │    │ + Bertha D Goeldner (Aug 1860 Iowa - 23 Apr 1925 Portsmouth, Shelby County, Iowa)
       │    │ (m. 1 Dec 1885 Harper, Keokuk County, Iowa)
       │    ├─Anna Maria Hammes (4 Oct 1867 Feyen, Near Trier, Rheinland-Pfalz, Germany -        │    │ 28 Oct 1897 Cass Township, Shelby County, Iowa) =>
       │    │ + Peter Mathias Leinen (7 May 1861 Clear Creek Township, Keokuk County, Iowa - 12 Aug 1939 Portsmouth,        │    │ Shelby County, Iowa)(m. 22 Apr 1884 St. Mary's Catholic Church, Cass Township, Shelby        │    │ County, Iowa)
       │    └─Susanna Hammes (22 Sep 1869 Feyen, Near Trier, Rineland-Pfalz, Germany -        │     1936 Council Bluffs, Pottawattamie County, Iowa) =>
       │     + Jacob Korth, Jr. (8 May 1864 - 3 Jun 1940)(m. 10 Apr 1888)
       ├─Peter Hammen (17 Dec 1833 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany -        │ 4 Mar 1889 Keokuk County, Iowa)
       │ Margaretha Petgen (9 Jan 1844 Sehndorf, Perl, LK Merzig-Wadern, Saarland, Germany -        │ 8 Dec 1912 Jolley, Calhoun County, Iowa)(m. 14 Jan 1865 Perl, Germany)
       │    ├─August Hammen (3 Nov 1865 Keokuk County, Iowa - 3 Mar 1920 Jolley, Calhoun County, Iowa)
       │    ├─Anna Hammen (1867 Keokuk County, Iowa - ??)
       │    ├─Nicholas E Hammen (30 Mar 1868 Harper, Keokuk County, Iowa -        │    │ 6 Jun 1934 Jolley, Calhoun County, Iowa)
       │    │ + Anna Rosalia Buch (1897 Keokuk County, Iowa - ??)
       │    ├─Susanna Hammen (24 Aug 1869 - 10 Oct 1948 Manson, Calhoun County, Iowa)
       │    │ + Joseph Stein (1888 - ??)