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: Charles David MCDERMOTT (20 Nov 1860 Saginaw, Michigan, USA - 24 Aug 1928 Toodyay, Western Australia, Australia)
Mother: Jane FERGUSON (29 May 1863 Toodyay, Western Australia, Australia - 24 Dec 1926 Northam, Western Australia, Australia)
Arthur Benjamin MCDERMOTT
(Jun 1890 Toodyay, Western Australia, Australia - 7 Aug 1978 Busselton, Western Australia, Australia)
Kathleen Glindon CURTIS (1890 Western Australia, Australia - 12 Jan 1946 Busselton, Western Australia, Australia)
   ├─Beatrice Helen MCDERMOTT (1919 - DECEASED Busselton, Western Australia, Australia)
   └─Roberta Curtis MCDERMOTT (Busselton, Western Australia, Australia;29 Nov 1924 - 16 Jan 2009)