The paid version contains no ads.
This application allows you to convert:
decimal to binary.
decimal to octal.
decimal to hexadecimal.
decimal to BCD
decimal to gray
binary to decimal
binary to octal
binary to hexadecimal
binary to BCD
binary to gray
octal to decimal
octal to hexadecimal
octal to BCD
octal to gray
hexadecimal to decimal
hexadecimal to octal
hexadecimal to BCD
hexadecimal to gray
BCD to decimal
BCD to octal
BCD to hexadecimal
BCD to gray
gray to decimal
gray to octal
gray to hexadecimal
gray to BCD
Also solve mathematic problems between binary, octal and hexadecimal.
Finally you can convert fractional numbers.