least count = 1 MSD by no.of VSD
http://answers.yahoo.com/question/index?qid=200807...

Least count of Vernier Calliper is difference in value of one main scale division and one vernier scale division. OR L C = (nx) / n n no of division in vernier
http://www.blurtit.com/q5044743.html

I am assuming that you are asking what the resolution is. The smallest measurement (least count?) would be 0. A decent one will have a 0.001" resolution (about 0.02mm) but vernier
http://in.answers.yahoo.com/question/index?qid=201...
