The World Health Organization (WHO) has developed an online resource, the Health Economic Assessment Tool (HEAT) for walking and cycling.  The tool estimates the economic savings resulting from reductions in mortality as a consequence of regular cycling and/or walking. Simply put, HEAT calculates an answer to the following question: "If x number of people cycle or walk y distance on most days, what is the economic value of mortality rate improvements?"  While default parameters are set for the European context, they can be adapted to various situations.