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":
Eliza GEE
(Abt 1816 Chelmsford, Essex, England - DECEASED)
Henry Charles BAILES
(12 Dec 1816 Chatham, Kent, England - Apr 1863 Chelmsford, Essex, England)
└─Joseph BAILES
(Chelmsford, Essex, England;Abt 1849 - 3 Nov 1907)
Mary Ann MORRILL
(1854 Heybridge, Essex, England - 20 Feb 1911 Chelmsford, Essex, England)
└─Emma Eliza BAILES
(12 Sep 1886 Chelmsford, Essex, England - 8 Apr 1942 Essex, England)
Abt 1816 - DECEASED
(2 Feb 1921 Chigwell Row, Essex, England - 30 Jun 2007 Holliston, Middlesex, Massachusetts, USA)