Metric count is also the weight of the system, so the greater the number of yarn finer. Cotton textile wool textile industry have to use.
Metric count (Nm) - At a given moisture regain, 1 gram of yarn length is a meter multiple, that is, 1 gram of heavy yarn is just 1 meter long, 1 (g) yarn, 1 gram heavy yarn Length of 200 meters long, the fineness of the yarn 200
Yarn count is the yarn count, divided into metric and imperial count.
The inch count is the unit weight (1 lb) of the yarn in the conventional moisture regain when the length of 840 yards multiple. A few 840 yards is the British a few yarn. (Often expressed in Ne).