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":
Vader: Jan van Kalken (10 jul 1834 Baarn - 29 jul 1911 Rotterdam)
   │    ├─Emma Wulffraat (Rotterdam;8 jun 1906 - 16 dec 1996)
   │    │ + Adolf Gustav Max Vis (9 apr 1906 Dortmund - 7 aug 1992 Capelle aan den IJssel)
   │    │ (huw. 3 jul 1929 Rotterdam)
   │    │    │ Christoffel Petrus Cornelis Maria van der Walle (26 feb 1934 Vlaardingen -    │    │    │ 20 sep 2006 Halderberge)
   │    │    │    └─ Dit paar is verwant aan elkaar. Enige nakomelingen zijn reeds opgenomen in de database