# Convert from number base

Converts numbers between different number systems.

## Convert from Binary (Base 2)

The **binary system** is a numbering technique where only two digits, 0 and 1, are used. It is particularly used in computing. In other words, this method uses only two symbols, the unit and the zero. Any number can be expressed in either the decimal or the binary system.

## Convert from Octal (Base 8)

The **octal system** is the positional numbering system whose base is 8, using the Indian Arabic digits: 0,1,2,3,4,5,6,7. In computing, octal numbering is sometimes used instead of hexadecimal. It has the advantage that it does not require the use of symbols other than digits.

## Convert from Decimal (Base 10)

The **Decimal Numbering System** is a positional numbering system and is the system we all use without realizing why. The Decimal System uses 10 digits (from 0 to 9). By combining these digits, larger numbers can be expressed.

## Convert from Hexadecimal (Base 16)

The **hexadecimal system** reduces an eight-bit number to only two hexadecimal digits. This reduces the confusion that can arise when reading long strings of binary numbers and the amount of space required when writing binary numbers.