How old does a president have to be?

Answer 1

43 years old

Answer 2

This depends on the country. But the U.S. 35 years old.
The minimum age for the US President is 35 years old.
In the United States to run you must be at least 35 years old to run fro president.
I'm pretty sure 36

It is actually 35

No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty five Years, and been fourteen Years a Resident within the United States.
I think the Constitution states that the President must be at least 35.
The Constitution requires that the President be a minimum of 35 years old.

Age35 Years Old. Article 2, Section 1 of the Constitution"No person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty-five Years, and been fourteen Years a Resident within the United States." -- U.S. Constitution - Article 2, Section 1
you must be 35 yrs. old to be president of the U.S.A.
There are many organizations, governments, businesses and other bodies all around the world which have a President.

They all have different age limits.
You have to be 35 and a legal citezen of the united states I think.
You have to be 35 to run. But I don't think anybody would vote for someone that young with no experience.
Age and Citizenship requirements - US Constitution, Article II, Section 1 No person except a natural born citizen, or a citizen of the United States, at the time of the adoption of this Constitution, shall be eligible to the office of President; neither shall any person be eligible to that office who shall not have attained to the age of thirty-five years, and been fourteen years a resident within the United States. Term limit amendment - US Constitution, Amendment XXII, Section 1 - ratified February 27, 1951 No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once.
35 35
According to the Constitution of the United States the person would have to be 35 by the day he would take office, January 30, of the year following the election in November.
There's a minimum age to be president of the United Staes. That age is 35. There is no minimum age to run.

From the U.S. Constitution, Article II, Section 1:

No person except a natural born citizen, or a citizen of the United States, at the time of the adoption of this Constitution, shall be eligible to the office of President; neither shall any person be eligible to that office who shall not have attained to the age of thirty-five years, and been fourteen years a resident within the United States.
You have to be at least 35 years old at the time that you take office.
For president of the US, Article 2 Section 1 of the constitution it said "attained to the Age of 35 years".

Other countries vary
I have read the Constitution and no where does it state age requirement. (Age limit has information)

I have looked up "laws" I have found absolutley none to support the age requirement. (Is it even a regulation?)

Therefore under yours and My Constitutional right anyone who wants to can run for Presidency. A government for the People and By the people.
35 years old is the minimum age for the US President.
I think that you have to be at least 25 but that's just me. Most US presidents have been older than 30
You must be at least 35 years old to become the President of the United States.