Cells are typically measured in micrometers
The diameter is measured using a tape measure.
Diameter.
In the US its diameter is measured in inches.
A diameter is measured by using a ruler. However, you also could use a digital caliper to measure the diameter of a circle.
Tube is measured by outside diameter, pipe is measured by inside diameter.
The diameter of the bullet casing, measured at 7.3 mm, is 7.3 millimeters.
gauge
When carefully measured, it's found to be precisely 30.2 .
The true diameter of the cell can be calculated by dividing the diameter of the cell in the photo by the magnification. In this case, if the cell in the photo is 2 millimeters in diameter and is magnified 40 times, the true diameter of the cell is 2 mm / 40 = 0.05 mm = 50 micrometers.
the cell of bacteria.
egg cell
Wire diameter is measured in millimetres (mm)