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":
Legend:
Father: Peter Joseph Hammes (22 Aug 1886 At Home on Farm, Clear Creek Township, Keokuk County, Iowa - 12 Nov 1939 At Home on Farm, Sigourney, Keokuk County, Iowa)
Mother: Teresa M Gries (15 Jul 1891 - 14 Nov 1934 At Home on Farm, Sigourney, Keokuk County, Iowa)
Bernice Margaret Hammes
(18 Feb 1914 At Home on Farm, Sigourney, Keokuk County, Iowa - 3 Feb 2004 Oregon)
Lawrence Heuberger (25 Dec 1912 - 24 Oct 1992 bur.Sublimity, Marion County, Oregon)(m. 2 May 1939)
   ├─Dorothy Mae Heuberger (17 May 1940 Salem, Marion County, Oregon -    │ 29 Aug 2004 Milwaukie, Clacamas County, Oregon)
   │ Robert Ellis Pekkola (29 Dec 1937 Pendleton, Umatilla County, Oregon -    │ 18 Oct 2011 At Home, Milwaukie, Multnomah County, Oregon)