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
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
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
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":
Father: Johannes Jacob Bel (Tue 4 Aug 1801 Ouddorp (NL) - Sat 19 Dec 1874 Krommenie (NL))
Mother: Neeltje Roelofs Beukman (chr.Sat 24 Nov 1804 b.Westknollendam (NL) - Thu 12 Nov 1835 Krommenie (NL))
Trijntje Bel
(Abt 1834 Krommenie (NL) - Fri 8 Jan 1904 Egmond Binnen (NL))