Decimal Day weights and measures.) Around the time of Decimalisation Day, "Decimal Adders" and other converters were available to help people convert between the old and new coins. The following is a table showing conversions between the decimal and pre-decimal systems. All pre-decimal coins (except for certain non-circulating coins such as crowns, sovereigns, and double florins which were explicitly excluded from demonetisation) are now no longer legal tender. Public outcry at the proposed demise of the old sixpence (6d), worth exactly p and originally slated for early withdrawal, postponed its withdrawal until June 1980. Shillings and florins, together with their same-sized 5p
Penny (British decimal coin) mid-2000s caused the value of the copper in the pre-1992 coins (which are 97% copper) to exceed the coins' face value. For example, in May 2006, the intrinsic metal value of a pre-1992 1p coin was about 1.5 pence. During 2008, the value of copper fell dramatically from these peaks. As of 31 March 2016 there were an estimated 11,430 million 1p coins in circulation, with an estimated total face value of £114.299 million. The penny is the lowest value coin in circulation in the United Kingdom. The purchasing power of previous lowest-value coins is: The original reverse of the