This tool provides a quick and simple way to calculate and subsequently order the new cholera kits and modules. The tool is best suited to estimate needs relating to cholera preparedness. The tool uses pre-defined scenarios based on available population data, pre-defined attack rates as well as the number of health care facilities available. It will help to calculate the number of mandatory essential kits for a cholera response; the number of complementary modules if necessary, including the number of cholera beds as well as estimations on costs for goods and freight from supplier till the port of entry in a particular country.