The article presents a web application designed to calculate the carbon footprint of individual anaesthetic substances used in medicine. The application enables healthcare professionals to estimate the environmental impact of various anaesthetics used during surgical procedures and other medical interventions. The tool provides information on how different anaesthetic agents contribute to greenhouse gas emissions. The web application is accessible and allows comparison of various anaesthetics in terms of their environmental impact. This tool can help healthcare facilities reduce their carbon footprint by selecting more environmentally friendly anaesthetic options. The initiative contributes to sustainability in healthcare and raises awareness about environmental aspects of anaesthesiology.