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":
         └─Włodarczyk Sebastian
(ok. 1820 Sobótka, ostrowski, wielkopolskie, Polska - 11 mar. 1884 Dobra Nadzieja, pleszewski, wielkopolskie, Polska)
          Miś Franciszka
(ok. 1831 - data nieznana)
                   └─Włodarczyk Franciszka
(20 kwie. 1861 Kuchary, pleszewski, wielkopolskie, Polska - data nieznana)
                    Rożek Franciszek
(20 sier. 1860 Witaszyce, jarociński, wielkopolskie, Polska - data nieznana)
                             ├─Rożek Stanisława
(26 mar. 1889 Pleszew, pleszewski, wielkopolskie, Polska - data nieznana)
                             ├─Rożek Jan
(22 sier. 1892 Pleszew, pleszewski, wielkopolskie, Polska - data nieznana)
                             ├─Rożek Franciszek
(10 gru. 1893 Pleszew, pleszewski, wielkopolskie, Polska - data nieznana)
                             ├─Rożek Kazimiera
(25 luty 1896 Pleszew, pleszewski, wielkopolskie, Polska - data nieznana)
                             ├─Rożek Maria
(29 sty. 1898 Pleszew, pleszewski, wielkopolskie, Polska - 16 luty 1988) =>
                             │ + Jankowski Marcin
(10 list. 1890 - 01 maj 1956)
                             └─Rożek Władysława
(30 maj 1900 Pleszew, pleszewski, wielkopolskie, Polska - data nieznana)