This broad analysis attempts to place an economic value on the numerous benefits provided by green infrastructure (defined here as a network of decentralized stormwater management practices). The report brings together current research on green infrastructure performance and presents methods for calculating related benefits. It offers simple equations to quantify water, energy, air quality, climate change benefits for green roofs, tree planting, bioretention and infiltration, permeable pavement, and water harvesting. To estimate the dollar value of each of these quantified benefits, examples and, when possible, simple equations are provided. The report also offers information and examples of benefits related to green infrastructure’s impact on the urban heat island effect, aspects of community livability, habitat improvement, and public education.