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Dictionary of Units / Measurements

Line Density

Line density is a measure of mass per unit length. The S I compatible unit of line density is kilograms/metre. A major use of line density is in the textile industry to indicate the coarseness of a yarn or fiber. For that purpose the SI unit is rather large so the preferred unit there is the tex. (1 tex = 1 gram/kilometer) To change any of these other units of line density into their equivalent values in kilograms/metre use the operation and conversion factor given. Those marked with # are exact. Other values are given to an appropriate degree of accuracy.

denier                 divide by  9 000 000 #

drex                   divide by 10 000 000 #

grams/centimetre       divide by 10 #

grams/kilometre (tex)  divide by  1 000 000 #

grams/metre            divide by 1000 #

grams/millimetre       1

kilograms/kilometre    divide by 1000 #

 

kilograms/metre        1

 

milligrams/centimetre  divide by 10 000 #

milligrams/millimetre  divide by   1000 #

ounces/inch            x 1.116 125

ounces/foot            x 0.093 01

pounds/inch            x 17.858

pounds/foot            x 1.488 164

pounds/yard            x 0.496 055

pounds/mile            x 0.000 281 849

tex                    divide by 1 000 000 #

tons(UK)/mile          x 0.631 342

tons(US)/mile          x 0.563 698

tonnes/kilometre       1

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