# What Is The Least Count Of Micrometer Caliper?

There are 50 divisions of .01mm on the thimble of a metric micrometer.
And here's how you calculate the least count of a micrometer:
The formula you need is Least Count (L. C) = Pith/no. Of divisions on micrometer barrel(thimble)
where,  Pith = distance travelled by thimble on linear sacle in one rotation.
Remember! The barrel/thimble of the micrometer will be divided into increments of .01 mm (millimeters).
thanked the writer.
Least count of a micrometer caliper is given by the pitch i.e. The distance covered by the screw in one revolution(usually .5 mm or 1 mm max!) divided by the total number of circular scale divisions(usually 50 or  100).Just remember that least count is always the SMALLEST POSSIBLE VALUE the instrument can measure.
thanked the writer.
0.001
thanked the writer.
Usually one thousandth of an inch, or one hundredth of a millimetre
thanked the writer.
Slide 11
.O
{font-size:149%;}

ØLC :

value of one MSD

No. Of divisions in vernier scale

Ex:

:  0.1   = 0.01cm

10
thanked the writer.