Hand (unit) divided by four, then the remainder is added after the radix point. Thus, a horse that measures 60 inches is 15 hands high (15 x 4 = 60) and a horse halfway between 15 and 16 hands is 15.2 hands, or 62 inches tall (15 x 4 + 2 = 62) Because the subdivision of a hand is a base 4 system, a horse 64 inches high is 16.0 hands high, not 15.4. A designation of "15.5 hands" is not halfway between 15 and 16 hands, but rather reads 15 hands and five inches, an impossibility in a base 4
Quarter (unit) As 231 cubic inches were considered to make up a wine gallon, the measure was about 242¼ L. The ale gallon was 282 cubic inches, meaning the quarter of ale was about 295¾ L. Cardarelli also claims it can vary from 17–30 imperial gallons for liquor. Quarter (unit) The quarter ( "one-fourth") is used as the name of several distinct English units based on ¼ sizes of some base unit. The "quarter of London" mentioned by the Magna Carta as the national standard measure for wine, ale, and grain was ¼ ton or tun. It continued to be used, e.g.,