Answer a few quick questions and we'll calculate you a baseline annual carbon and environmental footprint. It's easy, informative, and only takes minutes. For comprehensive carbon accounting, GHG audits, or custom modeling contact us for a proposal or schedule an enterprise demo.
Personal CO2 Calculator Business CO2 Calculator
Carbon footprint is the amount of greenhouse gas (GHG) emissions, including carbon dioxide (CO2) generated or emitted by activity (like travel, transportation, or using energy) during a given time period. Carbon footprint is the most common measurement category when talking about environmental footprint or climate change, and is typically measured in pounds, kilograms, or tons (often abbreviated MT for metric tons) of CO2. Growth of atmospheric CO2 from burning fossil fuels is the single largest scientifically recognized contributor to climate change, global warming, and biodiversity loss.
Our industry-leading, enterprise ESG and sustainability management software helps hundreds of companies, non-profits, and mission-driven organizations make their climate and social impact work more efficient, effective, and data-driven. Whether you use an existing measurement framework like SASB, Greenhouse Gas Protocol, GLEC, B Corp, or CDP, a custom methodology, or are new to sustainability reporting, we can help you measure baselines, count your carbon, and establish the right approach for ongoing emissions measurement, reduction, and target-setting.
Our carbon footprint and GHG calculators use 100% peer-reviewed academic data from trusted third-party sources, including CO2 calculation estimates and inputs from the International Organization for Standardization (ISO), the United Nations, the Center for Climate and Energy Solutions, and researchers at Stanford University, Yale FES, UC Berkeley, the University of Michigan, Tufts University, North Carolina State University, and the University of Seville. If you find any methodology issues or inconsistencies, have suggestions on more accurate or updated sources, or have any other questions or environmental measurement needs, please contact us. We're not affiliated with ISO, CCES, LEED, Energy Star, the UN, or the EPA.