Units of measurement can be as big or as small as needed.
In the metric system there are metres and kilometres but also decimetres and centimetres and millimetres. (or meters)
Micrometres, = 1 x 10-6 or a millionth of a metre ( or a thousandth of a millimetre)
Nanometres = 1 x 10-9m or a thousand millionth
Picometres = 1 x 10-12m or about 31 pm is the width of a helium atom (a million millionths)
It continues with a femto-, atto-, zepto-, yocto-
What could be that small?
Millimeter is the smallest unit among centimeter, kilometer, millimeter, and meter.
A centimeter is equivalent to 10 millimeters on a standard ruler. It is the second smallest unit of measurement on most rulers, with millimeters being the smallest.
No, the Franklin is not the smallest unit of charge. It is a unit of electric charge in the electrostatic system of units, defined as the amount of charge that produces a force of one dyne when placed one centimeter away from an equal charge. The smallest unit of charge is the elementary charge, which is approximately 1.602 x 10^-19 coulombs, representing the charge of a single proton or the negative of that of an electron.
When you say "what is after", I assume you mean the next smallest. while a millimeter is 1x10-3 meters, the next smallest most commonly used unit of measure is the micrometer which is 1 x 10-6 meters.
A square centimeter measures area, and a centimeter measures length, so they are not exactly comparable in size.
Millimeter is the smallest unit among centimeter, kilometer, millimeter, and meter.
millimeter
A Millimeter is smaller, 10 millimeters to a centimeter and 100 centimeters to meter.
cm (centimeter) is a unit of length. I don't recognize dc as a unit of length, so most likely you can't convert it.
sometimes decimeter, sometimes centimeter(if it measures mm)
centimeter
centimeter - unit of lengthsquare centimeter - unit of areacubic centimeter - unit of volume - equal to milliliter
Decimeter. From largest to smallest: kilo hecto deca UNIT deci centi milli
A centimeter is equivalent to 10 millimeters on a standard ruler. It is the second smallest unit of measurement on most rulers, with millimeters being the smallest.
a metric unit centimeter x centimeter x centimeter
A square centimeter is a unit of area; a centimeter is a unit of length or distance.
Cubic centimeter and centimeter cube equal the same thing. The cubic volume of any substance is 1 unit x 1 unit x 1 unit.