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: Stephen HARTLEY
(6 Oct 1865 Cowling, Yorkshire, England - 7 Nov 1947 Yorkshire, England)
Mother: Lizzie Ann DRIVER
(23 Dec 1872 Cowling, Yorkshire, England - Oct 1923 Keighley, Yorkshire, England)
Frank William HARTLEY
(8 Dec 1901 Keighley, Yorkshire, England - 22 May 1957 Grange, Lancashire, England)
└─John Michael Stephen HARTLEY
(13 Mar 1931 Keighley, Yorkshire, England - 6 Jan 1995 Eltham, Victoria, Australia)
1901 - 1957 (55 years)
(23 Dec 1872 Cowling, Yorkshire, England - Oct 1923 Keighley, Yorkshire, England)