Original ArticlesA Review of Tools to Calculate the Cost of Health Conditions and Common Health Risk FactorsContreary, Kara PhD; Chen, Zhuo (Adam) PhD, MS, MMgt; Chattopadhyay, Sajal PhD; Chang, Man-Huei MPHAuthor Information Centers for Disease Control and Prevention, Atlanta, Georgia. Correspondence: Kara Contreary, PhD, Centers for Disease Control and Prevention, 1600 Clifton Rd, NE, Atlanta, GA 30333 (email@example.com). The authors thank the members of the Health Economics Research Group at the Centers for Disease Control and Prevention (CDC) for their help in identifying published and unpublished cost calculators, especially Drs Harrell Chesson, Rui Li, Martin Meltzer, and Adam Skelton. They also thank Dr Scott Grosse for his advice in constructing the rating criteria and Drs Xin Xu and David Homa for helpful comments. All remaining errors are ours. The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the CDC. The authors have no conflicts of interest to declare. Journal of Public Health Management and Practice: November/December 2015 - Volume 21 - Issue 6 - p E1-E10 doi: 10.1097/PHH.0000000000000200 Buy Metrics AbstractIn Brief A cost calculator is a software tool that calculates the monetary cost associated with a disease, condition, or risk factor within a population group. We attempted to identify all available public health cost calculators using adapted systematic review methodology and performed a qualitative and a quantitative review on each included calculator. We first abstracted each calculator to ascertain its subject, target user, methodology, and output. We also developed a novel set of scoring criteria and evaluated each calculator for transparency and customizability. We found a wide variety of existing calculators in terms of subject area, target user, and analytic methodology. Furthermore, using our rating criteria, we found large differences in transparency with respect to the assumptions and parameter inputs driving results. This article provides a review of select cost calculators used in public health, a set of practical criteria used in evaluating such tools, and a systematic assessment of existing cost calculators. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.