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":
Alpheus Keebler
(Washington County, Tennessee, USA;Mar 1827 - 21 Jun 1900)
         ├─Icador "Dora" Keebler
(1853 Washington County, Tennessee, USA - ??)
         ├─David Theadore Keebler
(29 Jan 1856 Washington County, Tennessee, USA - 20 Jan 1906 bur.Jonesborough, Washington County, Tennessee, USA)
         │ Rebecca P Murphy
(1858 Tennessee, USA - ??)
         │          ├─Homer Crawford Keebler
(16 Sep 1886 Greenville, Greene County, Tennessee, USA - 1 Mar 1940 Edgar, Carbon County, Montana, USA)
         │          │ + Julia Rhea Bacon
(16 Mar 1887 Washington County, Tennessee, USA - 27 Aug 1965 Billings, Yellowstone County, Montana, USA)
         │          └─Carrie "Murphy" Keebler
(1 Jan 1895 Washington County, Tennessee, USA - 1 Apr 1954 bur.Rockvale, Carbon County, Montana, USA)
         │           + Clarence R Bequette
(15 Mar 1899 Chippewa County, Wisconsin, USA - 25 Sep 1992 Billings, Yellowstone County, Montana, USA)
         ├─Sarah Keebler
(Washington County, Tennessee, USA;1858 - Nov 1859)
         ├─John P Keebler
(Washington County, Tennessee, USA;25 Jan 1866 - 10 Mar 1897)
         │ + Susan E Sherfey
(23 Jan 1864 Johnson City, Washington County, Tennessee, USA - ?? Somers, Calhoun County, Iowa, USA)
         └─Samuel Keebler
(Washington County, Tennessee, USA;12 Sep 1868 - 7 Mar 1908)