How long can a tourist visa stay in the United States?

A tourist visa can stay for up to 6 months at a time.

Travel, entertainment, visiting relatives and friends, medical treatment, attending conferences, going to exhibitions and handling personal affairs in the United States can all apply for a B-2 American tourist visa. B-2 American tourist visas can be divided into three months, 1 year, three years, five years, 10 year and permanent, and the number of entry times can also be divided into single entry and multiple entry. American embassies and consulates in different countries or regions, or different consuls in the same consulate, have great discretion over the validity or number of entry visas. It is easier for Hong Kong residents to apply for a B-2 visa valid for multiple entry of 1 ~ 5 years, and it is easier for mainland residents of China to apply for a B-2 visa valid for three months to 1 year, with one or more entry.