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":
         └─Wrotecki Marcin
(ok. 1838 Ciążeń, słupecki, wielkopolskie, Polska - data nieznana)
          Tyczkowska Franciszka
(ok. 1839 Stare Miasto, koniński, wielkopolskie, Polska - data nieznana)
                   ├─Wrotecka Marianna
(1864 Ciążeń, słupecki, wielkopolskie, Polska - data nieznana)
                   ├─Wrotecki Teofil
(1868 Wierzbocice, słupecki, wielkopolskie, Polska - data nieznana)
                   ├─Wrotecka Józefa
(09 mar. 1870 Ciążeń, słupecki, wielkopolskie, Polska - data nieznana)
                   │ Urbaniak Józef
(data nieznana - data nieznana)
                   │           + Frydrychowicz Stanisław
(02 list. 1897 Kleczew, koniński, wielkopolskie, Polska -                    │           05 mar. 1981 Kalisz, kaliski, wielkopolskie, Polska)
                   ├─Wrotecki Ignacy
(1872 Ciążeń, słupecki, wielkopolskie, Polska - data nieznana)
                   └─Wrotecka Helena
(1875 Ciążeń, słupecki, wielkopolskie, Polska - data nieznana)