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":
Welter Toll, Mrs Barbara
(16 Apr 1849 Avon, Lorain, Ohio, United States of America - 7 May 1932 North Ridgeville, Lorain, Ohio, United States of America)
Toll, Mr Mathias
( - 18 Dec 1898 bur.Avon, Lorain, Ohio, United States of America)
         ├─Toll Conrad, Mrs Elizabeth
(1 Oct 1875 Avon, Lorain, Ohio, United States of America -          │ 27 Sep 1965 Amherst, Lorain, Ohio, United States of America)
         │ + Conrad, Mr Joseph Lawrence
(8 Oct 1875 Avon, Lorain, Ohio, United States of America -          │ 22 Sep 1938 Lakewood, Cuyahoga, Ohio, United States of America)
         ├─Toll, Mr Jacob
(7 Oct 1878 Avon, Lorain, Ohio, United States of America - 6 Apr 1933 Lorain, Lorain, Ohio, United States of America)
         │ Junglas Toll, Mrs Helena
(1875 - 1965 Lorain, Ohio, United States of America)
         │          └─Toll Smalley Cicman, Mrs Lucella Annette
(Jul 1917 Akron, Summit, Ohio, United States of America -          │           3 May 1970 Cuyahoga, Ohio, United States of America)
         │           Smalley, M.
         │                    └─Smalley Cicman Amsler, Mrs Ellen Jean
(7 Feb 1933 Cleveland, Cuyahoga, Ohio, United States of America -          │                     10 May 2021 Knox, Clarion, Pennsylvania, United States of America)
         │                     + Amsler, Mr James Lamont Jr
(13 Apr 1929 Seneca, Venango, Pennsylvania, United States of America -          │                     14 Oct 2013 Knox, Clarion, Pennsylvania, United States of America)
         └─Toll, Mr John
(1883 - 1929)