1 cup to teaspoon
47.3176 teaspoon

 To know how many teaspoons in a cup.  we just need to  multiply the number of  cups  by  48 .

for example:

 1   cup = 48 teaspoons 

 1/2 cup = 1/2*48= 24 teaspoons  

 1/4 cup = 1/4*48 =12 teaspoons