Equivalents and Capacities

Metric and U.S. Equivalents

1 angstrom1(light wave measurement)	0.1 millimicron 0.000 1 micron 0.000 000 1 millimeter 0.000 000 004 inch
1 cable's length	120 fathoms 720 feet 219.456 meters
1 centimeter	0.3937 inch
1 chain (Gunter's orsurveyor's)	66 feet 20.1168 meters
1 decimeter	3.937 inches
1 dekameter	32.808 feet
1 fathom	6 feet 1.8288 meters
1 foot	0.3048 meter
1 furlong	10 chains (surveyor's) 660 feet 220 yards 1/8 statute mile 201.168 meters
1 inch	2.54 centimeters
1 kilometer	0.621 mile
1 league (land)	3 statute miles 4.828 kilometers
1 link (Gunter's orsurveyor's)	7.92 inches 0.201 168 meter
1 meter	39.37 inches 1.094 yards
1 micron	0.001 millimeter 0.000 039 37 inch
1 mil	0.001 inch 0.025 4 millimeter
1 mile (statute orland)	5,280 feet 1.609 kilometers
1 mile (nauticalinternational)	1.852 kilometers 1.151 statute miles 0.999 U.S. nautical miles
1 millimeter	0.03937 inch
1 millimicron (m+GRKm)	0.001 micron 0.000 000 039 37 inch
1 nanometer	0.001 micrometer or 0.000 000 039 37 inch
1 point (typography)	0.013 837 inch 1/72 inch (approximately) 0.351 millimeter
1 rod, pole, or perch	161/2 feet 5.0292 meters
1 yard	0.9144 meter

Areas or Surfaces

1 acre	43,560 square feet 4,840 square yards 0.405 hectare
1 are	119.599 square yards 0.025 acre
1 hectare	2.471 acres
1 square centimeter	0.155 square inch
1 square decimeter	15.5 square inches
1 square foot	929.030 square centimeters
1 square inch	6.4516 square centimeters
1 square kilometer	0.386 square mile 247.105 acres
1 square meter	1.196 square yards 10.764 square feet
1 square mile	258.999 hectares
1 square millimeter	0.002 square inch
1 square rod, square pole or square perch	25.293 square meters
1 square yard	0.836 square meters

1. The angstrom is basically defined as 10^-10 meter.

2. There is a variety of “barrels” established by law or usage. For example, federal taxes on fermented liquors are based on a barrel of 31 gallons; many state laws fix the “barrel for liquids” at 31¹/2 gallons; one state fixes a 36-gallon barrel for cistern measurement; federal law recognizes a 40-gallon barrel for “proof spirits”; by custom, 42 gallons compose a barrel of crude oil or petroleum products for statistical purposes, and this equivalent is recognized “for liquids” by four states.

3. “Struck measure” refers to a struck, or level, bushel. It is the only official bushel measure in the U.K.

4. Frequently recognized as 1¹/4 bushels, struck measure.

5. Used in assaying. The assay ton bears the same relation to the milligram that a ton of 2,000 pounds avoirdupois bears to the ounce troy; hence the weight in milligrams of precious metal obtained from one assay ton of ore gives directly the number of troy ounces to the net ton.

6. The gross or long ton is used commercially in the United States to only a limited extent, usually in restricted industrial fields. These units are the same as the British “ton.”

 

 

 

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