This report evaluates and distills the findings of the United States Metric Study in which thousands of individuals, firms and organized groups, representative of our society, participated. On the basis of all the evidence marshalled in the Study, the report concludes that the United States should change to the metric system through a coordinated national program. The chapter headings are: I. Perspective, II. Two Centuries of Debate, III. Measurement Systems, IV. Arguments That Have Been Made for Metric and for Customary, V. Going Metric: What Would It Really Mean?, VI. The Metric Question in the Context of the Future World, VII. Going Metric: The Broad Consensus, VIII. Recommendation and Problems Needing Early Attention, IX. Benefits and Costs, and X. Two Paths to Metric: Britain and Japan. The report includes a bibliography of 12 supplemental reports authored by members of the United States Metric Study Group. (Author/MM)