Wanting to gain muscle

Fitness01_

Hey, I was able to lose all the extra weight using this app. But now that I'm down to 120lbs I want to tone up and build muscle. I'm not sure how many calories I should be eating to build muscle. I am 5'7 and 20 years old. I workout 6 days per week. Message me or add me, I need some motivation.

JeromeBarry1

http://community.myfitnesspal.com/en/discussion/10300310/most-helpful-posts-fitness-and-exercise-must-reads#latest