With a tape measure.
Centimeters
probably to measure a lamp depending on if its a desk lamp or a stand up lamp, if you use a stand up lamp, i would suggest using either feet or inches
the trick to finding the right size lampshade for your lamp is to measure the base of the lamp, times it by the height and the divide it by the width. this answer will be the diameter of your lampshade.
Just use a tape measure or some other measuring tool.
If you mean measure height then it would be the metre if you mean measure weight it would be Kilograms
Centimetres.
Kilograms. A lamp would typically weigh at around 10 kg
metres
ruler
that depends entirely on the size of the lamp post
that depends entirely on the size of the lamp post
kilometers
Metres.