Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

# Data Types

## Signed and unsigned datatypes

Data TypesBitsRange of Values
Unsigned char 8 0 to 255
Signed char 8 -128 to 127
Unsigned short 16 0 to 65535
Signed short 16 -32768 to 32767
Unsigned int 32 0 to 4294967295
Signed int 32 -2147483648 to 2147483647
Float 32 -3.4028 1038 to 3.4028 1038
Double 64 -1.7977 10308 to -1.7977 10308
• one byte is 8 bits

### Example - Unsigned char (byte)

The unsigned char with 8 bits can represent integers from 0 to 255 - check the Binary - to Decimal, Hexadecimal and ASCII Converter

• The unsigned char (byte) 01100100 represents the decimal number 100.

### Example - Signed char (byte)

With the signed char the leading bit indicates the sign of the number. 1 is negative and 0 is positive.

• The signed char (byte) 01100100 represents the decimal number 100.
• The signed char (byte) 10011100 represents the decimal number -100.

### Example - Unsigned short

• The unsigned short 00000000 01100100 represents the decimal number 100.

### Example - Signed short

• The signed short 00000000 01100100 represents the decimal number 100.
• The signed short 11111111 10011100 represents the decimal number -100.

### Example - Unsigned int

• The unsigned int 00000000 00000000 00000000 01100100 represents the decimal number 100.

### Example - Signed int

• The signed int 00000000 00000000 00000000 01100100 represents the decimal number 100.
• The signed int 11111111 11111111 11111111 10011100 represents the decimal number -100.

### Example - Float

• The Float 01000010 11001000 00000000 00000000 represents the decimal number 100.
• The Float 11000010 11001000 00000000 00000000 represents the decimal number -100.

### Example - Double

• The Double 01000000 01011001 00000000 00000000 00000000 00000000 00000000 00000000 represents the decimal number 100.
• The Double 11000000 01011001 00000000 00000000 00000000 00000000 00000000 00000000 represents the decimal number -100.

## Related Topics

• Mathematics - Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more

## Tag Search

• en: data types bytes bits words char short int float double

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## Citation

• Engineering ToolBox, (2016). Data Types. [online] Available at: https://www.engineeringtoolbox.com/data-types-d_1925.html [Accessed Day Mo. Year].

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