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":
Ena Maureen Hair
(Abt 1906 Texas, USA - 19 Sep 1952 Long Beach, Los Angeles County, California, USA)
Raymond Leroy Hazlet
(23 Nov 1901 Leon, Decatur County, Iowa, USA - 24 Mar 1987 Long Beach, Los Angeles County, California, USA)
:         ├─Betty Dale Hazlet
(15 Feb 1933 Lawton, Comanche County, Oklahoma, USA - 15 Dec 1987 Orange County, California, USA)
:         │ Leo 'Royce' Staples
(12 Jan 1931 Healdton, Carter County, Oklahoma, USA - 19 Aug 1979 Virginia Beach, Virginia Beach County, Virginia, USA)
:         │ :          + Living
:         │ + Roger Rasp
(6 Feb 1947 Los Angeles County, California, USA - ??)
:         │ + Leo A Bianco
(10 May 1926 Johnston, Cambria County, Pennsylvania, USA - :         │ 23 Jun 1967 Los Angeles County, California, USA)
:         ├─Nancy Claire Hazlet
(11 Apr 1936 Weatherford, Custer County, Oklahoma, USA - 22 Apr 1998 Valley, Stevens County, Washington, USA)
:         │ + Walter D Swofford
(Abt 1922 - ??)
:         └─Jane Lee Hazlet
(3 Jul 1941 Weatherford, Custer County, Oklahoma, USA - 25 Mar 2018 Stevens County, Washington, USA)
:          Living