Not in the U.K. Although they tried to make us fully metric starting in the mid 1970s, it didn't happen.
Items sold in shops by weight or volume are now sold in Kg or litres but all of our road signs are in miles or yards and the speedometers in our cars are in MPH.
People of around my age (mid forties) and older tend to use both systems for distance measuring. If I am designing or building something small I will use millimetres. If I am working on a house it will be in feet and inches.
Where metric measurements for distance are used here, it is millimetres and metres. The centimetre is hardly ever used and the decimetre is even more scarce.
http://www.bwmaonline.com/Metric Culprits.htm
Steve.