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: Henry Rosewarne LAKEMAN
(10 Jul 1866 Stirling East, South Australia, Australia - 2 Feb 1919 Perth, Western Australia, Australia)
Mother: Alice Beatrice CRAMP
(25 Sep 1875 Renmark, South Australia, Australia - 30 Jan 1935 York, Western Australia, Australia)
Glayds Alice Geraldine LAKEMAN
(Abt 1901 Leederville, Western Australia, Australia - 3 Dec 1984 Hamilton Hill, Western Australia, Australia)
          Richard John CHILBY
(6 Nov 1928 Bulli, New South Wales, Australia - 11 Sep 1990 Fremantle, Western Australia, Australia)