The measures of length employed in prescription writing are the millimeter, centimeter, decimeter, and meter.

10 millimeters

make

1 centimeter.

10 centimeters

"

1 decimeter.

10 decimeters

"

1 Meter.

1 millimeter is written 1mm, or M.001

equal in inches to .039370432, approx. 1/25.

1 centimeter " I cm., " M .01,

" " .39370432, " 2/5.

1 decimeter " I dm., " M .1,

" " 3.9370432, " 4.

1 Meter " 1 M., " M 1.,

" " 39.370432, " 40.

Metric Table of Capacities. The only measures of capacity employed in prescription writing are the cubic centimeter and the liter. 1000 cubic centimeters (Ccm. or Cc.) make 1 Liter (L.).