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":
Sarah A Collier
(17 FEB 1860 Warren County, Tennessee, USA - 21 JUN 1928 Old Hickory, Davidson County, Tennessee, USA)
Darius Taylor Myers (17 FEB 1847 Tennessee, USA - 9 NOV 1925 McMinnville, Warren County, Tennessee, USA)
     ┌──Ercie A Myers(22 JUL 1883 McMinnville, Warren County, Tennessee, USA -      │ 8 NOV 1945 McMinnville, Warren County, Tennessee, USA)
     │ + Benjamin Franklin Woodlee (8 OCT 1864 Warren County, Tennessee, USA -      │ 1 DEC 1930 McMinnville, Warren County, Tennessee, USA)
     ┌──Clarence Collier Myers(27 FEB 1885 Warren County, Tennessee, USA -      │ 17 AUG 1966 McMinnville, Warren County, Tennessee, USA)
     │ Maggie Josephine Elkins (31 JAN 1889 Warren County, Tennessee, USA -      │ 20 DEC 1974 McMinnville, Warren County, Tennessee, USA)
     │      ┌──Alva Irene Myers(25 FEB 1910 Warren County, Tennessee, USA -      │      │ 8 DEC 1999 McMinnville, Warren County, Tennessee, USA)
     │      │ + Roy R Cartwright (26 APR 1904 McMinnville, Warren County, Tennessee, USA -      │      │ : 13 JUN 1990 Delaware County, Indiana, USA)
     │      │ + Joseph Cleveland McCormick (3 SEP 1912 McMinnville,      │      │ Warren County, Tennessee, USA -      │      │ 10 FEB 2000 Warren County, Tennessee, USA)
     │      ┌──Georgia E Myers(17 JUN 1911 Warren County, Tennessee, USA -      │      │ 23 APR 1983 Clay County, Florida, USA)
     │      │ + Horace Neil Ferebee (21 JUN 1908 Dixon County, Tennessee, USA - FEB 1974)
     │      └──Minnie Evelyn Myers(5 JUN 1918 Warren County, Tennessee, USA -      │       30 NOV 1997 McMinnville, Warren County, Tennessee, USA)
     │       + Jack Truax (ABT 1917 -)
     │       + James P Clendenon (4 JUN 1922 - 16 FEB 1989)
     │       + Clarence Crain Bottoms (10 MAY 1918 Warren      │       County, Tennessee, USA - 10 JAN 1997 Shelsford Cemetery., McMinnville,      │       Warren County, Tennessee, USA)
     ┌──Martha Jane Myers(17 SEP 1887 Warren County, Tennessee, USA - 17 NOV 1964)
     │ + Richard H Martin (2 AUG 1886 Van Buren County, Tennessee, USA -      │ 4 DEC 1956 Nashville, Davidson County, Tennessee, USA)
     ┌──Ella D Myers(ABT 1892 Warren County, Tennessee, USA -)
     └──Wavie Lou Tella Myers(18 DEC 1892 McMinnville, Warren County, Tennessee, USA -       16 OCT 1973 McMinnville, Warren County, Tennessee, USA)