Difference between US President and British Prime Minister

British Prime Minister	US President
Ideal parliamentary system	ideal presidential system
Prime Minister hold central authority	President hold central authority
Not fixed term of office, parliament can pass disobedience movement against prime minister or even prime minister can resign by having differences with his own party	Fixed term of office, only through impeachment president can leave his office. President Nixon was impeached and resigned.
All key posts are hired through public service commission on the basis of merit	Thousands of person at higher designation can be appointed and terminated by president
PM is Accountable to parliament and member of parliament. He is indirectly elected by public but directly elected by parliament.	President is directly appointed by public so he is true representative of public.
PM took all decisions with the consent of his cabinet. Even he selects the members of his cabinet while keeping in mind position of that person in party and many other things. Collective responsibility principle is applicable in cabinet.	Act as king of his own cabinet. He selected and terminates his own cabinet and may or may not accept the suggestions of his cabinet.
Prime minister is head of administration and government while king as head of state. Both run government affairs with collaboration and mutual consent	President act as head of state as well head of government at a time. At one hand he is symbol of American union and on the other hand he acts as sole administrative head.
PM member of parliament and accountable to parliament for his functions and performance. Even parliament can present no confidence vote against him.	US president not member of congress nor he is accountable to congress.
Head of cabinet and leader of the house (parliament). On the basis of majority of votes he can pass legislation and he can prepare and present all government documents under the supervision of cabinet.	On the basis of separation of power, president does not have as much authority of legislation as PM of Britain.
Prime minister can dissolve parliament with the consent of King	President cannot dissolve assembly. `
Being leader of his political party, electoral tickets are issued on the basis of his name. Party discipline and parliamentarian members are not against him. He is acting as central head of his party.	President has no such control on party and even in USA, such party discipline and central position of party is not exist.
Having majority in parliament, prime minister can pass budget according to his own will	President had no such powers to pass the budget.
Prime minister can be elected multiple times until he has popularity in public and confidence on parliament.	Present can be elected only twice and his tenure is maximum of eight years.