CDC’s new COVID-19 Quarantine and Isolation calculator takes the stress out of deciding when, and for how long, people with COVID-19 and close contacts need to stay home, get tested, and wear a well-fitting mask.

The calculator provides important information about what precautions people with COVID-19 and their close contacts can take to protect loved ones and prevent COVID-19 in their communities.

This online, mobile-friendly calculator provides a simple, easy-to-use way to help people follow CDC’s Quarantine and Isolation guidance and get customized information that applies to their unique situation.