Number systems app is give you fast and easy convertion tools.You can just input desire value and you get accurate output.This app also support floating point convertion too.
There are infinite ways to represent a number. The four commonly associated with modern computers and digital electronics are: decimal, binary, octal, and hexadecimal.

Binary (base 2) is the natural way most digital circuits represent and manipulate numbers.
Octal (base 8) was previously a popular choice for representing digital circuit numbers in a form that is more compact than binary.
Decimal (base 10) is the way most human beings represent numbers.
Hexadecimal (base 16) is currently the most popular choice for representing digital circuit numbers in a form that is more compact than binary.

All four number systems are equally capable of representing any number. Furthermore, a number can be perfectly converted between the various number systems without any loss of numeric value.
There are many methods or techniques which can be used to convert numbers from one base to another.
Binary to Oct,Dec,Hexa
Octal to Bin,Dec,Hexa
Decimal to Bin,Oct,Hexa
Hexa to Bin,Oct,Dec