Range of Data Types in C

Range of Data Types in C Programming Language

Data types in C help the programmers, to work with different types of data in a program. Using which we can accept and print different types of data. These data types have a definite range of data, and we have to choose the datatype according to their range and our data set. Every datatype has a range according to ASCII values of the characters in C.

Range of data type in c

Range of various Data Types

As we have discussed above that there are many different data types in C, and every data type has a pre-defined range of data, under which it works, so we need to be smart while choosing a datatype in our program, below is a table which represents the different data-type, and their data range.

Name Of The Datatype Range of Datatype
Double 2.3E-308 to 1.7E+308
Long Double 3.4E-4932 to 1.1E+4932
Long -9223372036854775808 to 9223372036854775807
Unsigned Long 0 to 18446744073709551615
Float .2E-38 to 3.4E+38
int -32,768 to 32,767 or -2,147,483,648 to 2,147,483,647
unsigned int 0 to 65,535 or 0 to 4,294,967,295
short -32,768 to 32,767
unsigned short 0 to 65,535
char -128 to 127 or 0 to 255
signed char -128 to 127
unsigned char 0 to 255

Lets’s see a C program, for finding the range of the datatypes from the compiler itself. Yes, we can find out the range of the datatypes, from a C code also.

C code for finding the range of Datatypes :

int main()

    printf("CHAR_BIT : %d\n", CHAR_BIT);
    printf("CHAR_MAX : %d\n", CHAR_MAX);
    printf("CHAR_MIN : %d\n", CHAR_MIN);
    printf("INT_MAX : %d\n", INT_MAX);
    printf("INT_MIN : %d\n", INT_MIN);
    printf("LONG_MAX : %ld\n", (long) LONG_MAX);
    printf("LONG_MIN : %ld\n", (long) LONG_MIN);
    printf("SCHAR_MAX : %d\n", SCHAR_MAX);
    printf("SCHAR_MIN : %d\n", SCHAR_MIN);
    printf("SHRT_MAX : %d\n", SHRT_MAX);
    printf("SHRT_MIN : %d\n", SHRT_MIN);
    printf("UCHAR_MAX : %d\n", UCHAR_MAX);
    printf("UINT_MAX : %u\n", (unsigned int) UINT_MAX);
    printf("ULONG_MAX : %lu\n", (unsigned long) ULONG_MAX);
    printf("USHRT_MAX : %d\n", (unsigned short) USHRT_MAX);

    return 0;

Output :

CHAR_MAX : 128 
CHAR_MIN : -127
INT_MAX : 2147483647
INT_MIN : -2147483648
LONG_MAX : 9223372036854775807
LONG_MIN : -9223372036854775808
SCHAR_MIN : -128
SHRT_MAX : 32767
SHRT_MIN : -32768
UINT_MAX : 4294967295
ULONG_MAX : 18446744073709551615
USHRT_MAX : 65535

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