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":
Alice BARTLETT
(1853 Hailey, Oxfordshire, England - 15 Jul 1911 North Leigh, Oxfordshire, England)
Joseph HILL (Dec 1853 North Leigh, Oxfordshire, England - 2 Dec 1927 Witney, Oxfordshire, England)
└─Albert James HILL (1880 North Leigh, Oxfordshire, England - 26 Jan 1955 Ilford, Essex, England)
Florence PAGE (2 Jul 1881 Bennington, Hertfordshire, England - 12 Mar 1942 Dane End, Hertfordshire, England)
(m. 13 Aug 1921 Dane End, Hertfordshire, England)
└─Gertie May HILL (12 Sep 1922 Dane End, Hertfordshire, England - 22 Feb 2012 Harvey, Western Australia, Australia)
Herbert Harvey PEARSON (6 Oct 1916 Spotland, Lancashire, England - 11 Nov 1996 Narembeen, Western Australia, Australia)
├─Michael Douglas PEARSON (9 Mar 1944 Hertford, Hertfordshire, England - │ 21 Jun 2010 Sydney, New South Wales, Australia)
1853 - 1911 (58 years)
Florence PAGE 
(2 Jul 1881 Bennington, Hertfordshire, England - 12 Mar 1942 Dane End, Hertfordshire, England)
