The ant is 0.125 inches long. (1/8= 0.125)
The ant is 0.3175 centimeters long (there are 2.54 centimeters in an inch so 2.54x0.125= 0.3175)
The ant is 0.003175 meters. (move the decimal)
The ant is 3.175 millimeters. (move the decimal)
Hope this helps!