The Male Circumcision (MC) Decision-Makers’ Program Planning Tool (DMPPT) is an Excel-based model that estimates the impact and cost of scaling up male circumcision services as an HIV prevention intervention. The model considers different policy options including target populations (all adult males, young males, adolescents, neonates, high-risk males, etc.) and different rates of scaling up MC coverage. Outputs of the model include cost per MC performed, number of HIV infections averted, and cost per infection averted. Total costs can be based on detailed facility-level inputs on the costs of service provision or on assumptions about the average costs per male circumcision performed.