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":
Father: James Malcolm E. INNES
(1853 Glasgow, Lanarkshire, Scotland - 21 Dec 1892 Coburg, Victoria, Australia)
Mother: Eliza Nixon WATERS
(24 Oct 1847 Toodyay, Western Australia, Australia - 14 May 1932)
Linda May Kathleen INNES
(30 Nov 1887 Newcastle, Western Australia, Australia - 20 Aug 1977 Subiaco, Western Australia, Australia)
Ernest Albert DONEGAN
(26 May 1887 Newcastle, Western Australia, Australia - 23 Dec 1956 Perth, Western Australia, Australia)
         ├─Peter Innes DONEGAN
(5 Jun 1913 Subiaco, Western Australia, Australia - 18 Jan 1939 Katherine, Northern Territory, Australia)
         └─Patricia Kathleen DONEGAN
(10 Sep 1916 West Perth, Western Australia, Australia - 19 Dec 2006 Croydon, Victoria, Australia)