C program to convert uppercase to lower case

Hey guys from now we would be giving C Programs tutorials also.we thought of expanding our topics so i thought why not expand it from the heart of computers that is C programming.

So here is the first code i would start with.. its actually easy. 🙂

Code to convert upper case to lower case is:-


int main(){

char str[20];

int i;

printf(“Enter any string->”);


printf(“The string is->%s”,str);





printf(“\nThe string in lower case is->%s”,str);

return 0;


Hope You find this useful 🙂 If the code doesn’t work please let us know below in the comments 🙂

thanks for stopping by and keep coding.



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