How long can the new coronavirus last on surfaces? This tool will tell you.

Woman with face mask and spray bottle running cloth over table (© Keith Srakocic/AP Images)
An employee at a Pennsylvania restaurant cleans a table on June 4. (© Keith Srakocic/AP Images)

A new online tool can estimate how long the virus that causes COVID-19 will survive on surfaces.

The tool uses temperature and relative humidity to calculate the natural decay of SARS-CoV-2, the coronavirus that causes COVID-19. The U.S. Department of Homeland Security designed the tool to help officials and business owners, in consultation with health professionals, make decisions on reopening facilities.

Try it here.