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    Tool 3
    SOS Toolbox

    Using Microscopes

    This toolbox item shows you the units used in microscopy and the formula for calculating the drawing size.

    I. Units for measurement:

    Due to the extremely small size of samples, the unit for measuring is the micrometer (µm)

    1 m = 1 000 mm
    1 mm = 1000 µm
    =>
    1 µm = 1/1 000 mm
    1 m  = 1 000 000 µm
    =>
    1 µm = 1/1 000 000 mm

    II. Line aid for metric conversion

    400 m
    =
    400 000 mm
    =
    400 000 000 µm
    50 µm
    =
    0.05 mm
    =
    0.005 cm
    450 cm 
    =
    4 500 mm
    =
    4 500 000 µm
    1 200 µm
    =
    1.2 mm
    =
    0.12 cm
    8 cm
    =
    80 mm
    =
    80 000 µm

     

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