Data Types

• 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.

Temperature ^oC
K
^oF

Length m
km
in
ft
yards
miles
naut miles

Area m²
km²
in²
ft²
miles²
acres

Volume m³
liters
in³
ft³
us gal

Weight kg_f
N
lbf

Velocity m/s
km/h
ft/min
ft/s
mph
knots

Pressure Pa
bar
mm H₂O
kg/cm²
psi
inches H₂O

Flow m³/s
m³/h
US gpm
cfm