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":
   │    │    │ :   │    └─Philipp III von Waldeck-Eisenberg (9 Dec 1486 - 20 Jun 1539) =>
   │    │    │ :   │     + Anna von Cleve (21 May 1495 - 24 May 1567)
   │    │    │ :   │     + Adelheid von Hoya ( - Yes, date unknown)
   │    │    │ :   └─Graf Philipp zu Solms-Hohensolms-Lich (15 Aug 1468 - 3 Oct 1544 Frankfurt am Main, Hessen)
   │    │    │ :    Gräfin Adriana von Hanau-Münzenberg (1 May 1470 Hanau - 12 Apr 1524)(m. 15 Feb 1489)
   │    │    │ :       ├─Graf Reinhard I zu Solms-Lich (Lich;12 Oct 1491 - 25 Sep 1562) =>
   │    │    │ :       │ + Gräfin Maria zu Sayn-Hachenburg (4 Apr 1506 - 31 May 1586)(m. 13 Jan 1524 Hachenburg)
   │    │    │ :       ├─Graf Otto I von Solms-Laubach (11 May 1496 - 14 May 1522) =>
   │    │    │ :       │ + Gräfin Anna von Mecklenburg-Schwerin (14 Sep 1485 Wismar - 12 May 1525 Rüdelsheim)(m. 7 Sep 1519 Spangenberg ?)
   │    │    │ :       ├─Dorothea zu Solms-Lich (25 Jan 1493 - 8 Jun 1578) =>
   │    │    │ :       │ + Graf Ernst II von Mansfeld-Vorderort (6 Dec 1479 - 9 May 1531)
   │    │    │ :       └─Ursula von Solms-Lich ( - Yes, date unknown) =>
   │    │    │         + Maria zu Stolberg-Wernigerode (8 Dec 1507 Stolberg - 6 Jan 1571 Oberbronn)
   │    │    ├─Hildegard von Sirck (1430 - Aft 14 May 1478)
   │    │    │        │ + Graf Philipp IV von Waldeck-Wildungen (1493 - 30 Nov 1574)(m. 1554)
   │    │    │        ├─Heinrich von Isenburg-Neumagen ( - 1554)
   │    │    │        │ + Franz von Manderscheid-Schleiden-Virneburg (24 Jan 1514 - 17 May 1548)(m. 1 Mar 1545)
   │    │    │         + Graf Wilhelm von Sayn-Wittgenstein (24 Aug 1485 - 18 Apr 1570)(m. 20 Nov 1522)
   │    │    ├─Margarete von Sierck (1437 - 14 Feb 1520)
   │    │    │ Johann von Salm, IV (VI) (29 Jun 1431 - 4 Jun 1485)
   │    │    │    │    └─Graf Georg von Mömpelgard (4 Feb 1498 Hohenurach - 18 Jul 1558 Kirkel) =>
   │    │    │    │     + Landgräfin Barbara von Hessen (8 Apr 1536 Kassel, Hessen, D - 8 Jun 1597 Schloss Waldeck)