They are small, black ants measuring 2-3mm
3mm.
3mm = 0.12inch.
A 3mm long insect would be a very small ant or a small bug
up to5 inches
3mm = 0.3 cm
3mm
need to know 3mm into inches
If the diameter of a circle is 3mm the circumference is: 9.424 mm
3 mm is considered diminutive, ie small. Something that is 1 cm (ie 10 mm) or more is large.
A grain of suger is 1mm, so 3 grians is equal to 3mm.
A magnification of 40 times is needed to achieve a 120mm image of a 3mm object. This is calculated by dividing the desired image size (120mm) by the original object size (3mm). So, a magnification factor of 40x would enlarge the 3mm object to 120mm.