Citizens of the Southeast Asian financial hub are able to enter the highest number of countries visa-free or with a visa on arrival, making Singapore's passport the most powerful, an index by global advisory firm Arton Capital showed.
Singaporeans don't need visas for many countries that Americans do, including China, Cuba, and Brazil. The U.S. was in the sixth tier of countries in Arton Capital's study alongside Malaysia, Ireland and Canada.
"While Singapore quietly climbed the ranks, the U.S. passport has fallen down since President Donald Trump took office," Arton Capital said in a statement. Turkey recently revoked visa-free status to American passport holders on the back of a diplomatic row.
Earlier this year, Arton Capital's index showed Singapore and Germany tied for first place but the city-state was propelled to the lone number one spot after Paraguay recently removed visa requirements, Arton Capital said.
"This is a testament of Singapore's inclusive diplomatic relations and effective foreign policy," Philippe May, managing director of Arton Capital's Singapore office, said in a statement.
Historically, the most powerful passports have mostly been European, according to the index.