SI Units, Symbols, and Capitalisation Rules

SI UnitSymbol
metrem
square metrem 2
cubic metrem 3
micronµ
litrel
gramg
metric tont
seconds
ergerg
dynedyn
degree Celsius°C
degree absolute°K
caloriecal
barbar
hourh
ampereA
voltV
wattW
ohm
coulombC
faradF
henryH
hertzHz
poiseP
newtonN
candelacd
luxlx
lumenlm
stilbsb

Here is my chart showing the units and their symbols. Notice how the symbols associated with electricity are in capitals. This might be useful for the physics students in UK.