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":
Mary Clever
(ged.10 nov 1670 London - begr.30 mei 1742 Brielle)
George Langcake (ged.23 apr 1681 Carlisle Cumberland ENGLAND - begr.9 jan 1734 Brielle)(huw. 1 jun 1703 London)
   └─Bernardus Lengkeek (1705 London - begr.22 jan 1754 IJsselmonde)
    Ingetje Arijsdr van Boles (18 mrt 1721 Ridderkerk - 4 feb 1789 IJsselmonde)(huw. 22 aug 1745 IJsselmonde)
       └─Maria Bernardusdr Lengkeek (ged.5 nov 1746 IJsselmonde - begr.22 feb 1796 Overschie)
        Jan Ludolph Wetters (ged.26 dec 1746 Dinxperlo - 7 dec 1811 Delfshaven)(huw. 26 mei 1776 Rhoon)
           └─Bernardus Johannesz Wetters (ged.20 jun 1779 IJsselmonde - 10 jun 1816 Delfshaven)