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":
Amanda Smith
(26 Aug 1873 Polk County, Tennessee, USA - 29 Jan 1936 Cleveland, Bradley County, Tennessee, USA)
John Ross Wattenbarger
(10 Sep 1870 Bradley County, Tennessee, USA - 4 May 1947 Cleveland, Bradley County, Tennessee, USA)
         ├─Pearl Odessa Wattenbarger
(Cleveland, Bradley County, Tennessee, USA;17 Oct 1897 - 4 Apr 1956)
         │ + James Ruble McCurry
(3 Jan 1873 Greeneville, Greene County, Tennessee, USA - 26 Aug 1948 Cleveland, Bradley County, Tennessee, USA)
         │ + Earnest Horace Carson
(1 Nov 1895 Ocoee, Polk County, Tennessee, USA -          │ 8 Feb 1924 Liberal, Seward County, Kansas, USA)
         ├─Samuel Clifton Wattenbarger
(25 Aug 1899 Felken, Bradley County, Tennessee, USA - 30 Sep 1916 Polk County, Tennessee, USA)
         ├─Wayland Greenberry Wattenbarger
(2 Feb 1904 Polk County, Tennessee, USA - 8 Jun 1978 Cleveland, Bradley County, Tennessee, USA)
         │ + Mary Jane Campbell
(5 Jun 1905 Bradley County, Tennessee, USA - 25 Mar 1998 Cleveland, Bradley County, Tennessee, USA)
         ├─Addie Gertrude Wattenbarger
(29 Sep 1912 Cleveland, Bradley County, Tennessee, USA - 9 Nov 1985 Chattanooga, Hamilton County, Tennessee, USA)
         ├─Liona Margery Wattenbarger
(18 Feb 1915 Ocoee, Polk County, Tennessee, USA - 27 May 1999 Cleveland, Bradley County, Tennessee, USA)
         │ + Russell D Fowler
(29 Apr 1913 Georgia, USA - 13 Aug 2002 Cleveland, Bradley County, Tennessee, USA)
         ├─Esther Caroline Wattenbarger
(29 May 1919 Cleveland, Bradley County, Tennessee, USA - 26 Jul 1979 Doraville, DeKalb County, Georgia, USA)
         │ + Wallace D Casteel
(10 Sep 1915 Bradley County, Tennessee, USA - 20 Jul 1998 Newnan, Coweta County, Georgia, USA)
         │ + Herb Miller
         ├─Mary Stella Wattenbarger
(31 Dec 1901 Polk County, Tennessee, USA - 11 Jun 1983 Cleveland, Bradley County, Tennessee, USA)
         │ + Robert Eldredge Bernard Taylor
(20 Jul 1895 Cleveland, Bradley County, Tennessee, USA -          │ 20 Mar 1964 bur.Cleveland, Bradley County, Tennessee, USA)
         └─John Earl Wattenbarger
(24 Apr 1909 Tennessee, USA - 14 Oct 1991 Lebanon, Wilson County, Tennessee, USA)
          Edna Asalee Stewart
(17 Nov 1906 Georgia, USA - 30 Apr 1969 bur.East Ridge, Hamilton County, Tennessee, USA)