REAP Petite asks questions about users’ consumption activities, including energy use, travel, food, and goods consumed, to build complete footprints at the household level.

The tool includes a ‘pledges’ section, which suggests ways that users can decrease their footprints through, for example, home improvement or behavioural change. Pledges have a direct impact on users’ carbon footprints and can be compared with original individual or group results.

The tool builds on earlier work, such as the footprint calculator developed by WWF. REAP Petite is based on the SEI-developed REAP suite of models, which has been used to provide policy advice in the UK and around the world.