Python makes a pretty nice interactive calculator. You can do the other way around, too, with the builtin function bin(x). (And there are also hex() and oct() builtins, if you also need to go back ...

Master Thesis Defense - January 13, 2017: BinSign: Fingerprinting Binary Functions to Support Automated Analysis of Code Executables. January 10, 2017 | Lina Adnan Nouh. Friday, January 13, 2017 at 10 ...