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":
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┌──William Robert Hughes
(12 Dec 1876 Cleveland, Bradley County, Tennessee, USA - 15 Jan 1960 Gainesville, Cooke County, Texas, USA)
Theodore Donald Hughes (11 Mar 1907 Chattanooga, Hamilton County, Tennessee, USA - 3 May 1979 Dallas, Dallas County, Texas, USA)
│ ┌──Jacob Bacon
(Washington County, Tennessee, USA;1 Aug 1802 - 12 Oct 1859) =>
│ ┌──Benjamin Franklin Bacon
(3 Aug 1834 Washington County, Tennessee, USA - 8 Mar 1915 Galena, Stone County, Missouri, USA)
│ │ └──Elizabeth Keebler
(21 Apr 1799 Rockbridge County, Virginia, USA - 1870 Bradley County, Tennessee, USA) =>
│ │
└──Rosa Daphne Bacon
(5 Dec 1874 Bradley County, Tennessee, USA - 9 Mar 1960 Houston, Harris County, Texas, USA)
│
│ ┌──Judge Levi Trewhitt
(14 Jul 1797 Buncombe County, North Carolina, USA - 31 Jan 1862 Mobile, Mobile County, Alabama, USA) =>
└──Mary Ann Trewhitt
(2 Apr 1836 Bradley County, Tennessee, USA - 3 Feb 1886 Cleveland, Bradley County, Tennessee, USA)
└──Harriett Lavender
(3 May 1803 Morgan County, Tennessee, USA - 9 Jan 1855 Cleveland, Bradley County, Tennessee, USA) =>