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
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
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
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":
         └─Ratajczak Józef
(26 luty 1876 Jastrowo, szamotulski, wielkopolskie, Polska - data nieznana)
          Lisiak Franciszka
(10 luty 1878 Wychowaniec, obornicki, wielkopolskie, Polska -           1958 poch.Cmentarz Górczyński Poznań, poznański, wielkopolskie, Polska)
                   ├─Ratajczak Stanisława
(23 wrz. 1902 Wychowaniec, obornicki, wielkopolskie, Polska - data nieznana)
                   ├─Ratajczak Marianna
(25 sier. 1903 Wychowaniec, obornicki, wielkopolskie, Polska - data nieznana)
                   ├─Ratajczak Józefa
(04 mar. 1905 Wychowaniec, obornicki, wielkopolskie, Polska - data nieznana)
                   ├─Ratajczak Stanisław
(15 kwie. 1906 Wychowaniec, obornicki, wielkopolskie, Polska -                    │ 25 sty. 1978 Poznań, poznański, wielkopolskie, Polska)
                   └─Ratajczak Stefan
(01 wrz. 1910 Jaryszewo, szamotulski, wielkopolskie, Polska - data nieznana)