The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Staand
2.75
70
For smart phones, not for printing
Liggend
5.5
140
For smart phones, not for printing
International
in.
mm
A5 Staand
5.82
148
A4 Staand
8.25
210
Also A5 Liggend
A4 Liggend
11.71
297
Also A3 Liggend
A3 Liggend
16.54
420
USA & Canada
in.
mm
Letter Staand
8.5
216
Also Legal Staand
Letter Liggend
11
279
Legal Liggend
14
356
Also Ledger Staand
Ledger Liggend
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":
       │    │ + Leijke Janne van Nahuijs (Rotterdam;30 dec 1818 - 26 apr 1861)(huw. 7 okt 1846 Rotterdam)
       │    │ + Gijsberta Hoddenbach (5 aug 1830 Arnhem - 11 dec 1873 Rotterdam)
       │    │ : (huw. 14 aug 1861 Rotterdam)
       │    │ + Maria Helena van Dooren (2 jun 1825 Rotterdam -        │    │ 14 nov 1898 Leiden)(huw. 6 jan 1875 Rotterdam)
       │    ├─Adolphus van den Heuvel (17 dec 1820 Schiedam - 22 jun 1911 Rotterdam)