How old do you have to be to donate blood

Im 14 and would really like to donate blood,there are tons of blood drives around and I think it would make me feel good if I donated some,can you do this at my age?with a parents permission?
thanks everybody

For the U.S.A You must be 17 years old. In New York State and New Jersey State, you can be 16 years old with parental permission. The minimum weight for donating whole blood is 110 lbs. There is no maximum limit. If you are female and donating double red blood cells, you must be 5’5” tall and weigh 150 lbs. if you are a male and donating double red blood cells, you must be 5’1” tall and weigh 130 lbs. Sorry Hope this Helps.

Sorry, you have to be 17 to donate, sometimes they'll take 16 with parental consent, but not before then.

my country tunusia ' 18 years old"