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":
Florence Melvina Chapman
(Jun 1865 Wayne County, Iowa, USA - 1909 bur.Miles, Runnels County, Texas, USA)
John Morris Greenlee
(27 Jan 1860 Wayne County, Iowa, USA - 30 May 1916 Murfreesboro, Pike County, Arkansas, USA)
         ├─Oscea Opal Greenlee
(20 Apr 1893 Blakeman, Rawlins County, Kansas, USA - 18 Apr 1989 Sonoita, Santa Cruz County, Arizona, USA)
         ├─Perry Greenlee
(4 Jan 1895 Kansas, USA - Jan 1986 Tucson, Pima County, Arizona, USA)
         ├─Marie Jane Greenlee
(19 May 1903 Colorado, USA - 3 Jan 1997 Tucson, Pima County, Arizona, USA)
         ├─Cora Greenlee
(18 Jan 1883 Iowa, USA - 1979 Tucson, Pima County, Arizona, USA)
         │ + Charles Leon Everhart
(1 Feb 1880 Uhrichsville, Tuscarawas County, Ohio, USA - 1957 bur.Canelo, Santa Cruz County, Arizona, USA)
         └─Dora Viola Greenlee
(10 Jun 1886 Jackson, Wayne County, Iowa, USA - 1940 bur.Wheat Ridge, Jefferson County, Colorado, USA)
          + Ellsworth Logan Stapp
(6 Feb 1886 Illinois, USA - Aug 1969 Denver, Denver County, Colorado, USA)