How long is the distance of one centimeter?

The distance of 3-4 in the picture, the interval indicated by the red arrow in the picture is one centimeter, which is almost the width of a finger.

1 cm = 10 mm. Each cell represents 1mm, and the cell10 represents 10 mm, which is also1cm. In life, the length of thumbtacks and screws, the length of keys on the keyboard, the thickness of small transparent glue and the thickness of bottle caps are all around 1 cm.

Extended data

Unit conversion of centimeter:1cm =10 mm =10000 micron = 1000000 nanometer =0. 1 decimeter = 0.01m = 0.0000/.

The unit of measurement is the scale that people choose to measure a measurable size, and its value is determined by the definition of the unit. The physical standard with the highest accuracy reflects the numerical value given by the unit definition, which is called the measurement benchmark of the unit.

The unit of length refers to the basic unit for measuring spatial distance, which is formulated by human beings to standardize the length. Its international unit is "meter" (symbol "m"), and commonly used units are millimeter (mm), centimeter (cm), decimeter (dm), kilometer (km), meter (m), micron (micron) and nanometer (nm).