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":
James Benjamin Setty
(20 Feb 1858 Brush Creek, Highland County, Ohio, USA - 22 Apr 1925 Greenfield, Highland County, Ohio, USA)
         ├─Charles Gilbert Setty
(27 Feb 1879 Highland County, Ohio, USA - 12 Jul 1926 Greenfield, Highland County, Ohio, USA)
         │ Florence Adeline (Adda) West
(4 Mar 1881 Ohio, USA - 6 Jul 1944 Highland County, Ohio, USA)
         │          ├─Charles Ellsworth Setty
(28 Jun 1907 Greenfield, Highland County, Ohio, USA - 28 Oct 1943 Springfield, Clark County, Ohio, USA)
         │          └─Gertrude Virginia Setty
(22 Apr 1904 Adams County, Ohio, USA - 22 Sep 1947 Greenfield, Highland County, Ohio, USA)
         ├─Mary Lucretta Setty
(Sep 1881 Highland County, Ohio, USA - 1953 bur.Peebles, Adams County, Ohio, USA)
         │ + Ira Cornelius Swayne
(14 Aug 1883 Ohio, USA - 16 Feb 1955 bur.Peebles, Adams County, Ohio, USA)
         ├─Anna Marie Setty
(26 Jul 1885 Highland County, Ohio, USA - 1954 bur.Fairborn, Greene County, Ohio, USA)
         │ + Lester Leo Webb
(1 Jan 1878 Jamestown, Greene County, Ohio, USA - 1961 Dayton, Montgomery County, Ohio, USA)
         ├─Bertha Etta Setty
(Dec 1887 Brush Creek, Highland County, Ohio, USA - 14 Jun 1964 Champaign County, Ohio, USA)
         │ + Jesse Arthur Pensyl
(3 Apr 1887 Leesburg, Highland County, Ohio, USA - 22 Aug 1973 Urbana, Champaign County, Ohio, USA)
         ├─Susan Frances Setty
(10 Apr 1894 Liberty, Highland County, Ohio, USA - 1942 bur.Jamestown, Greene County, Ohio, USA)
         │ + Gideon Sherman Curtis
(Greene County, Ohio, USA;14 Jul 1878 - 23 Jan 1950)
         └─Martha Elizabeth Setty
(20 Feb 1893 Adams County, Ohio, USA - 25 Nov 1918 Chillicothe, Ross County, Ohio, USA)
          + Ernest H Black
(Abt 1890 - ??)