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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┌──Louis Kimbrough Whitaker
(12 Sep 1871 Dutch Mills, Washington County, Arkansas, USA - 23 Jun 1958 Stilwell, Adair County, Oklahoma, USA)
Elaine Whitaker (1906 Stilwell, Adair County, Oklahoma, USA - )
│ ┌──John Gilbraith Barnes
(15 May 1851 Anderson, Caswell County, North Carolina, USA - 29 Feb 1924 Conway County, Arkansas, USA)
└──Maude Ellen Barnes
(11 Nov 1878 Cane Creek, Grant County, Arkansas, USA - 7 Oct 1965 Fort Smith, Sebastian County, Arkansas, USA)
│ ┌──Elihu Keebler
(15 Jun 1822 Washington County, Tennessee, USA - 23 Apr 1904 Chattanooga, Hamilton County, Tennessee, USA) =>
└──Sarah Malinda Keebler
(27 Apr 1850 Nashville, Davidson County, Tennessee, USA - 20 Aug 1935 Boise, Ada County, Idaho, USA)
└──Cyrenia Fitzgerald
(Washington County, Tennessee, USA;1820 - 19 Nov 1874)