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":
Drusilla Dragoo
(11 Jan 1820 Illinois, USA - Sep 1905 San Antonio, Bexar County, Texas, USA)
         └─Parthenia Evaline Galland
(20 Sep 1845 Lee County, Iowa, USA - 22 Dec 1872 Dow City, Dickinson County, Iowa, USA)
          John Calloway Kuykendall
(22 Oct 1836 Nashville, Davidson County, Tennessee, USA - 30 Apr 1912 Sperry, Tulsa County, Oklahoma, USA)
                   ├─Absolam David Kuykendall
(7 Sep 1858 Iowa, USA - 2 May 1920 Checotah, McIntosh County, Oklahoma, USA)
                   ├─Rose Altha Kuykendall
(1868 Shelby County, Iowa, USA - 17 Apr 1926 Cook County, Illinois, USA)
                   │ + Alexander Shatz
(Chicago, Cook County, Illinois, USA;22 Dec 1856 - 21 Jan 1924)
                   ├─William Selem Keykendall
(3 Apr 1861 Dow City, Crawford County, Iowa, USA -                    │ 18 Feb 1943 Council Bluffs, Pottawattamie County, Iowa, USA)
                   │ Marion Emma Hooker
(12 Oct 1863 Wisconsin, USA - 14 Nov 1930 Council Bluffs, Pottawattamie County, Iowa, USA)
                   │          ├─Neva Elina Kuykendall
(Aug 1885 Dunlap, Harrison County, Iowa, USA -                    │          │ 5 Aug 1971 Council Bluffs, Pottawattamie County, Iowa, USA)
                   │          │ + John Fosdick
(Abt 1879 Council Bluffs, Pottawattamie County, Iowa, USA - ??)
                   │          ├─Leonard Ray Kuykendall
(26 Jan 1889 Dunlap, Harrison County, Iowa, USA -                    │          │ 13 Apr 1923 Oak Grove, Montrose County, Colorado, USA) =>
                   │          │ + Grace Mildred Christie
(30 Mar 1893 Dunlap, Harrison County, Iowa, USA -                    │          │ 22 Mar 1980 San Joaquin County, California, USA)
                   │          ├─Nellie Edith Kuykendall
(16 Sep 1901 Dunlap, Harrison County, Iowa, USA -                    │          │ Nov 1974 Council Bluffs, Pottawattamie County, Iowa, USA)
                   │          │ + Alma Fredrick Barber
(23 Aug 1897 Omaha, Douglas County, Nebraska, USA -                    │          │ Dec 1984 Council Bluffs, Pottawattamie County, Iowa, USA)
                   │          └─Elmer A Kuykendall
(Iowa, USA;17 Nov 1887 - 17 Mar 1888)
                   ├─Clara 'Elzina' Kuykendall
(Dec 1866 Iowa, USA - ??)
                   │ + Charles S DeWolf
(26 Sep 1864 Wheaton, DuPage County, Illinois, USA - 23 Jun 1929 Maywood, Cook County, Illinois, USA)
                   └─Henry Russell Kuykendall
(27 Aug 1870 Union, Crawford County, Iowa, USA - Mar 1930 Okemah, Okfuskee County, Oklahoma, USA)
                    + Bettie Marguerite Crownover
(Jun 1878 Franklin County, Tennessee, USA - 1957 bur.Okfuskee County, Oklahoma, USA)