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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┌──James Bacon
(Abt 1758 Maidencreek Twp, Berks County, Pennsylvania, USA - 1846 Washington County, Tennessee, USA) =>
┌──Thomas Bacon, Sr
(1 Nov 1793 Maidencreek Twp, Berks County, Pennsylvania, USA - │ 5 Sep 1871 Jonesborough, Washington County, Tennessee, USA)
│ └──Magdalene Neumann
(10 Jul 1773 Montgomery County, Pennsylvania, USA - Bef 1850 Washington County, Tennessee, USA) =>
│
┌──Isaac Bacon
(1831 Jonesborough, Washington County, Tennessee, USA - 3 Dec 1879 Pleasant Valley, Washington County, Tennessee, USA)
│ └──Sarah (Sally) Barron
(Jonesborough, Washington County, Tennessee, USA;15 Aug 1805 - 12 Dec 1871)
│
Sarah Frances "Fannie" Bacon (23 Aug 1864 Washington County, Tennessee, USA - 30 Jun 1891 Jonesborough, Washington County, Tennessee, USA)
│
│ ┌──Jacob Armay Keebler, II
(23 Oct 1765 Newcastle County, Delaware, USA - 1 Jun 1839 Washington County, Tennessee, USA) =>
│ ┌──Jacob Armay Keebler, III
(6 Apr 1792 Buffalo Creek, Rockbridge County, Virginia, USA - 23 Aug 1877 Washington County, Tennessee, USA)
│ │ └──Mary Barbara Young
(17 Sep 1765 Marcus Hook, Chester County, Pennsylvania, USA - 3 Jul 1842 Washington County, Tennessee, USA) =>
│ │
└──Nancy Mary Keebler
(6 Dec 1833 Washington County, Tennessee, USA - 13 Aug 1894 Pleasant Valley, Washington County, Tennessee, USA)
│
│ ┌──John Haws
(1770 Virginia, USA - 27 Nov 1848 Haws Crossroads, Washington County, Tennessee, USA)