The processing of many addresses into geographic coordinates at once is known as batch geocoding or bulk geocoding. Because geocoding large amounts of data can be computationally intensive, some geocoders require a fee to use. Free geocoders are often restricted in the amount of free processing you can acquire before being required to pay for further processing, or they are temporally limited in the number of records that can be processed per amount of time. However, for relatively small projects, free batch geocoding is often desirable and obtainable. The web site links below provide access to free batch geocoding services.