CDCs new <"https://www.cdc.gov/coronavirus/2019-ncov/your-health/quarantine-isolation.html">COVID-19 Quarantine and Isolation (QI) Calculator takes the stress out of figuring when, and for how long, people with COVID-19 and close contacts need to stay home, get tested, and wear a well-fitting mask. Developed in response to requests from partners and the public, the calculator provides important information about what precautions people with COVID-19 and their close contacts can take to protect loved ones and slow the spread of COVID-19 in their communities. This online, mobile-friendly calculator provides an easy-to-use way to help people follow CDCs quarantine and isolation guidance and get customized information to address their unique situation. It can be used by individuals, healthcare providers, businesses, and organizations that are managing COVID-19 cases and close contact exposures.