ranga (pl. rangar is attested) noun "yard, full pace". This Númenórean linar measure was "slightly longer than our yard, approximately 38 inches [= 96.5 cm]". (UT:285, 461)
Quenya
ranga
noun. yard, full pace
ranga
yard, full pace
lár
league
lár (1) noun "league", a linear measure, 5000 rangar (q.v.). A ranga was approximately 38 inches, so a lár was "5277 yards, two feet and four inches [ca. 4826 m], supposing the equivalence to be exact" - close enough to our league of 5280 yards to justify this translation. The basic meaning of lár is "pause"; in marches a brief halt was made for each league. (UT:285)
A Númenórean measure roughly equal to a single pace of an army on the march (UT/285). Its proper meaning is “a full pace”. Tolkien gave a rough translation of “yard”, but due to the longer Númenórean stride the actual length of a ranga is about 38 inches rather than the 36 inches of an English yard. Two rangar (6 foot 4 inches) was said to be the approximate height of a man of the Dúnedain, but they were considerably taller than most men of Middle Earth.