Campus Calculator Tools

Introduction to SIMAP®

We are excited to announce that  SIMAP (Sustainability Indicator Management and Analysis Platform) will replace the Excel Campus Carbon Calculator for U.S. and Canada and the online CarbonMAP tools. The redesigned and expanded SIMAP will offer campuses a simple, comprehensive, and affordable online tool for measuring, calculating, and reporting their carbon and nitrogen footprints. The mission of SIMAP is to continue to help institutions, colleges, and universities track their footprints so they can meet their sustainability goals as effectively and efficiently as possible. 



UNH has been a leader in the campus sustainability community and recognized for our progress towards carbon neutrality and  increased resilience as a Climate Commitment Charter and Honor Society Signatory of the Presidents’ Climate Leadership Commitment. As part this work, we have been collaborating with University of Virginia to include their Nitrogen Footprint Calculator supported by EPA and with Second Nature, the non-profit facilitating the Climate Leadership Network. We are working to align SIMAP with the goals and reporting needs of signatories, as well as broader needs of higher education institutions. Signatories will be able to access useful features such as direct export of inventory data to the reporting platform, and will receive access to SIMAP at a substantial discount.

SIMAP Training Modules
Questions? Contact us via email at

What is the Campus Carbon Calculator?

The Campus Carbon Calculator (CCC) is a tool to help organizations determine how much they are contributing to global climate change, and how they can manage their greenhouse gas (GHG) emissions better.  The CCC was originally developed by the former non-profit Clean Air - Cool Planet and the Sustainability Institute at UNH in 2001 and released to the public in 2004. Usage grew from a few dozen early adopters to nearly 200 users during the first year. Today, thousands of institutions in the U.S. and abroad use the Calculator to track their institutional greenhouse gas emissions, including more than 90% of the U.S. colleges and universities that publicly report their emissions. In 2014, the Sustainability Institute at UNH assumed ownership of the Calculator and CarbonMAP. 

The CarbonMAP tool and the CCC Excel based tool were retired on January 31, 2018 and users are transitioning to SIMAP. 

The Excel-based Campus Carbon Calculator (CCC) tool has been discontinued.  UNHSI is no longer updating emission factors and methodology for the tool, which means that it no longer provides an accurate calculation of your emissions. UNHSI has also discontinued user support for the CCC. Please do not use older versions of the CCC to calculate your footprint.

For consistency and continued ease of data collection, we’ve made a workbook with the CCC “input worksheets” available for download for any users who would like to continue to track inventory input data in that format.

You can enter your data from the CCC input worksheets into SIMAP to calculate results based on the most accurate and up-to-date factors and methodologies available. There are two ways to enter your data: 1) You can manually copy over your data into SIMAP, or 2) you can upload your spreadsheet (either a previous version of the CCC or the data tracking file) into SIMAP.

We do still support the free calculation of your carbon footprint in SIMAP using a Basic account, and you have the ability to automatically upload your CCC spreadsheet data into SIMAP using a Tier 1  (paid) account.

Campus Calculator Support 

Don't know where to start? We've got you covered.

  • SIMAP Resources now include the Introduction to Greenhouse Gas Accounting and Data Collection and the Greenhouse Gas Inventory FAQs

Can't find what you're looking for? Contact us or (603) 862-2954.  Please, let us know how we can assist with your transition to SIMAP.