The Federal Highway Administration has mandated that after October 1, 1996, all projects receiving federal funds must be in metric units. Contracts are already being awarded in metric. Concrete product suppliers that deal in the global market are finding it increasingly difficult to use both English and metric units in their production lines. The conversion to metric is becoming a reality. Right now, there is a waiting game going on. The first vendors and suppliers to convert could be losers. The industry is forced to install short-term measures to accommodate both systems. One of these measures is the knowledge of conversions between English and metric units. Different jobs will require knowledge of different conversions. An inexpensive calculator can simplify the conversion tasks. At first, there will be many mistakes in conversions, and contractors, engineers should double check all conversions to ensure correct measurements.