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: Levi (Sweet) Trewhitt (22 Apr 1829 Sunbright, Morgan County, Tennessee, USA - 19 Oct 1916 Cleveland, Bradley County, Tennessee, USA)
Mother: Sarah A Wattenbarger (30 Oct 1836 Greene County, Tennessee, USA - 21 Feb 1909 Cleveland, Bradley County, Tennessee, USA)
James Madison Trewhitt
(7 Nov 1865 Bradley County, Tennessee, USA - 14 Oct 1950 Cleveland, Bradley County, Tennessee, USA)
Alice J Hunt
(23 Aug 1866 Tennessee, USA - 9 Nov 1951 Bradley County, Tennessee, USA)
         └─Ruth Trewhitt
(26 Jan 1895 Bradley County, Tennessee, USA - 21 Feb 1961 bur.Cleveland, Bradley County, Tennessee, USA)