A U.S. president can serve a maximum of two elected terms in office, as established by the 22nd Amendment to the United States Constitution, ratified in 1951

. This means no person can be elected president more than twice. Additionally, if a vice president or other successor assumes the presidency and serves more than two years of a predecessor's term, they can only be elected president once more. If they serve two years or less of the predecessor's term, they may be elected twice

. Before the 22nd Amendment, there was no formal limit on presidential terms, but a two-term tradition was set by George Washington and followed by most presidents until Franklin D. Roosevelt was elected to four terms, prompting the amendment's adoption

. In summary:

• Maximum of two elected terms for president.
• If succeeding to the presidency mid-term and serving more than two years, only one additional elected term is allowed.
• If serving two years or less of a predecessor's term, two full elected terms are allowed.

This constitutional limit is the current legal standard for presidential terms in the United States