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":
Mary Ellen Frump
(27 Oct 1843 Ohio, USA - 29 Mar 1932 Bratton, Adams County, Ohio, USA)
Anthony G Setty
(9 Jun 1841 Ohio, USA - 4 Mar 1932 Adams County, Ohio, USA)
         ├─Daniel Edward Setty
(6 May 1866 Sinking Spring, Highland County, Ohio, USA - 25 Jun 1939 Brush Creek, Highland County, Ohio, USA)
         │ Senith Rebecca Oberholtzer
(10 Sep 1869 Highland County, Ohio, USA - 31 Dec 1938 Brush Creek, Highland County, Ohio, USA)
         │          ├─Zora M Setty
(Apr 1893 Ohio, USA - ??)
         │          ├─Lawrence Alden Setty
(13 May 1898 Highland County, Ohio, USA - 16 Nov 1992 Fort Myers, Lee County, Florida, USA)
         │          ├─Zora M Setty
(12 Apr 1893 Highland County, Ohio, USA - 13 Feb 1939 Athens, Athens County, Ohio, USA)
         │          └─Xelta L Setty
(Highland County, Ohio, USA;29 Mar 1890 - 4 Oct 1899)
         ├─Mary Elizabeth Setty
(25 May 1869 Highland, Highland County, Ohio, USA - 10 Mar 1959 Hillsboro, Highland County, Ohio, USA)
         │ + Oregon Kansas Charles
(27 Mar 1870 Hollowtown, Highland County, Ohio, USA - 5 Jan 1962 Hillsboro, Highland County, Ohio, USA)
         └─Thomas W Setty
(Abt 1872 Ohio, USA - ??)