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":
          Kasprowicz Kazimierz
(21 sty. 1879 - 09 list. 1916)
          :         ├─Kasprowicz Tadeusz
(08 paź. 1904 Poznań, poznański, wielkopolskie, Polska - data nieznana)
          :         ├─Kasprowicz Irena
(16 mar. 1907 Poznań, poznański, wielkopolskie, Polska -           :         │ 13 wrz. 1990 poch.Cmentarz Górczyński Poznań, poznański, wielkopolskie, Polska)
          :         │ Busza Leon
(13 czer. 1905 Poznań, poznański, wielkopolskie, Polska - data nieznana)
          :         │          ├─Busza Zbigniew Leon
(02 czer. 1930 Poznań, poznański, wielkopolskie, Polska - data nieznana)
                   └─Poprawa Zdzisław Ludwik
(13 lip. 1923 Poznań, poznański, wielkopolskie, Polska - data nieznana)