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":
        Gillis van der Wall (Dordrecht;ged.7 mei 1750 - 5 dec 1841)(huw. 12 mei 1782 Dordrecht)
           └─Johanna Dingena van der Wall (Dordrecht;ged.7 sep 1788 - 22 jun 1856)
            Jan Kok (1780 Werkendam - 26 dec 1847 Dordrecht)(huw. 26 mei 1810 Dordrecht)
               └─Elizabeth Cornelia Clazina Kok (5 jun 1822 Dordrecht - 26 mei 1909 Rotterdam)
                Willem Menenbruker (28 jan 1818 Dordrecht - 12 jan 1889 Rotterdam)
                (huw. 7 aug 1844 Dordrecht)
                   └─Willem Minnebruiker (28 aug 1852 Dordrecht - 3 aug 1920 Rotterdam)
                    Cornelia de Jong (Rotterdam;27 dec 1857 - 22 feb 1920)(huw. 7 jul 1875 Rotterdam)