Students Must Earn Or Get At least From 18-22 Credits To Graduate From High School. But You Can Get Your Diploma On 21 Credits Even. But Recommend You To Earn Almost 22 Credits Both In Canada And In The United States To Easily Get Into Famous Colleges And For Your Bright Future. But Now How To Take These Numbers Credits Just To Get Some Extra Classes Which Will Be Add In Your Final Credit Hours And Almost Every School Offers Extra Classes Both In New York And Texas. But In New York, 44 Credits Is The Requirement To Graduate From High School In Some School 30 Credits.