• EnviroCalc - Environmental Benefits and Cost Savings Calculator for Purchasers doc format of    envirocalc_main_page.doc  : EnviroCalc is a downloadable spreadsheet-based tool designed to estimate the environmental benefits of purchases of recycled-content and energy efficient products in a single tool. One of the advantages is that all the calculations are based on reporting information that is easily obtained from product suppliers.

  • Energy Star Calculators : The Energy Star website contains a number of calculators created to estimate the potential savings and payback period for purchases of energy efficient products.

  • Environmental Benefits Calculator: The Northeast Recycling Council, Inc. (NERC) developed this Calculator as an easy-to-use means of generating estimates of the environmental benefits of a study area, based on the tonnages of materials that are source reduced, reused, recycled, landfilled, or incinerated (includes waste-to-energy). The Calculator can be used to educate the public, legislators and others about these benefits, assist state and municipal employees to better understand the impacts of their waste management programs, support market development efforts, and to increase the public's understanding of source reduction, reuse and recycling as a sustainable environmental strategy.

  • EPEAT - Electronic Product Environmental Assessment Tool: A procurement tool to help institutional purchasers in the public and private sectors evaluate, compare and select desktop computers, notebooks and monitors based on their environmental attributes. EPEAT was developed through a 3-year stakeholder process that was managed by a non-profit organization - Zero Waste Alliance.

  • HEV Cost Calculator Tool: This calculator, developed with the help of the US Department of Energy, allows fleets to evaluate the full costs and benefits of a hybrid electric vehicle (HEV) in comparison to a conventional vehicle. Fleets also may use the tool to determine the cost and benefits of a fleet of HEVs versus a fleet of conventional vehicles.