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":
William Henry WILTSHIRE
(1875 Birmingham, Warwickshire, England - 7 Oct 1954 Geraldton, Western Australia, Australia)
Eva Millie SMITH (Bathurst, New South Wales, Australia - 5 Dec 1965)
(m. 7 Apr 1902 Perth, Western Australia, Australia)
└─Mildred Lillian WILTSHIRE (26 Oct 1908 Mount Lawley, Western Australia, Australia - 6 Feb 2000 Mandurah, Western Australia, Australia)
John Norman KAY (1904 Bindoon, Western Australia, Australia - 31 Jul 1992 Mandurah, Western Australia, Australia)(m. 1927 Perth, Western Australia, Australia)
1875 - 1954 (79 years)
Eva Millie SMITH 
(Bathurst, New South Wales, Australia - 5 Dec 1965)
