I don’t know about you, but I find myself doing conversions from decimal to hex and binary several times per day. For me, working out binary equivalents of decimal numbers is something I do all the time to verify subnet masks, network and broadcast addresses - also in answering “is this IP in the same subnet or in an adjacent network?” Conversions of the same type crop up all the time in decoding constructs in packets. Wireshark and Burp will both often anticipate what you want to do on this score, but not always.
Article Link: https://isc.sans.edu/diary/rss/26122