Nail (unit)
Encyclopedia
A nail, when used as a unit, is usually one sixteenth of a certain base unit. In English usage the most common base units were the foot and the yard
for length, the acre
for area and the (long) hundredweight
for mass.
(Metric sizes calculated for most common values of the base units today.)
Yard
A yard is a unit of length in several different systems including English units, Imperial units and United States customary units. It is equal to 3 feet or 36 inches...
for length, the acre
Acre
The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land.The acre is related...
for area and the (long) hundredweight
Hundredweight
The hundredweight or centum weight is a unit of mass defined in terms of the pound . The definition used in Britain differs from that used in North America. The two are distinguished by the terms long hundredweight and short hundredweight:* The long hundredweight is defined as 112 lb, which...
for mass.
| Base unit | Equivalent | Metric |
|---|---|---|
| foot | 1 digit Digit (unit) The digit or finger is an ancient and obsolete non-SI unit of measurement of length. It was originally based on the breadth of a human finger... = ¾ inch |
= 1.905 cm 1 E-2 m Image:Length one to ten scale.svg|110px|right|Click on the top for smaller lengths and on the bottom for larger lengthspoly 0 0 20 20 0 20 Distances shorter than 1 centimetrepoly 0 200 200 200 220 220 0 220 Distances 10 centimetres or longer... |
| yard | 2¼ inches | = 5.715 cm 1 E-2 m Image:Length one to ten scale.svg|110px|right|Click on the top for smaller lengths and on the bottom for larger lengthspoly 0 0 20 20 0 20 Distances shorter than 1 centimetrepoly 0 200 200 200 220 220 0 220 Distances 10 centimetres or longer... |
| acre | ¼ rood Rood A rood is a cross or crucifix, especially a large one in a church; a large sculpture or sometimes painting of the crucifixion of Jesus.Rood is an archaic word for pole, from Old English rōd "pole", specifically "cross", from Proto-Germanic *rodo, cognate to Old Saxon rōda, Old High German ruoda... = 10 square rods |
= 252.9285264 m² 1 E3 m² To help compare sizes of various objects, we list here areas between 1,000 and 10,000 m² . See also areas of other orders of magnitude.* Areas smaller than 1,000 m²* 1,000 m² are equal to:** 1 E+3 m²... |
| hundredweight | 1 clove = 7 pound Pound (mass) The pound or pound-mass is a unit of mass used in the Imperial, United States customary and other systems of measurement... s |
= 3.17514659 kg |
(Metric sizes calculated for most common values of the base units today.)