How to Convert an Int to String in C

In this post, we'll learn how to convert an integer to a string in C.
sprintf()
To convert an integer to a string, you can use the sprintf()
function in C.
Here's how to convert the int 12345
to the string "12345"
:
#include <stdio.h>
int main() {
int number = 12345;
char string[5];
sprintf(string, "%d", number);
printf("%s\n", string);
}
The output will be the number converted to a string:
12345
The sprintf()
function has this syntax:
int sprintf(char *str, const char *format, ...)
It takes any value and prints it to a string. It is similar to the printf()
function except it doesn't print to the console but instead returns the string.
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