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":
Burgess Burdiss, Mrs Bertha Bee
(30 Aug 1883 - 13 Feb 1958 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
Burdiss, Mr George F
(10 Mar 1877 - 30 Jan 1972 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
         ├─Burdiss Meadows, Mrs Gertrude I
(3 Sep 1901 Fayette, West Virginia, United States of America -          │ 11 Apr 1946 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
         │ + Meadows, Mr Willis Edward
(16 Apr 1897 Abney, Raleigh, West Virginia, United States of America -          │ 10 Jun 1954 Beckley Hospital, Raleigh, West Virginia, United States of America)
         ├─Burdiss, Mr Harry Patrick
(6 Mar 1904 West Virginia, United States of America -          │ 6 Feb 1953 Killarney, Raleigh, West Virginia, United States of America)
         ├─Burdiss, Mr Carl Hampton
(4 Sep 1906 Raleigh, West Virginia, United States of America -          │ 16 Dec 1965 Beckley Hospital, Raleigh, West Virginia, United States of America)
         ├─Burdiss, Mr William J
(9 Jun 1911 - 2 Oct 1974 Howard Chapel Cemetery, Howard, Maryland, United States of America)
         │ + Burdiss, Mrs Louise
(1 Jan 1917 - 15 Apr 1979 Howard Chapel Cemetery, Howard, Maryland, United States of America)
         ├─Burdiss Dunn, Mrs Anna Louise
(1915 - 2008 bur.Westlake, Cuyahoga, Ohio, United States of America)
         ├─Burdiss, Mr Charles T
(26 Oct 1916 - 29 Mar 1988 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
         │ + Sutphin Burdiss, Mrs Margaret Kathryn
(11 Mar 1920 Wyoming, West Virginia, United States of America -          │ 9 Apr 2007 Beckley Hospital, Raleigh, West Virginia, United States of America)
         ├─Burdiss, PFC Mr Cornelius F
(1918 West Virginia, United States of America -          │ 28 Oct 1944 bur.Netherlands American Cemetery & Memorial, Margraten, Eijsden-Margraten Municipality, Limburg, Netherlands)
         ├─Burdiss Farrar, Mrs Katherine Elizabeth
(18 Jul 1918 -          │ 3 Aug 1956 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
         │ + Farrar, Mr Robert Daniel Sr
(22 May 1911 - 9 Apr 2002 bur.Sunset Memorial Park, Beckley Raleigh, West Virginia, United States of America)
         └─Burdiss West, Mrs Maxine Geneva
(10 Jun 1924 Vanwood, Raleigh, West Virginia, United States of America -           17 Aug 2012 Bowers Hospice House, Beckley, Raleigh, West Virginia, United States of America)