BC Calc 4.6 was retired, December 31, 2018, and will no longer be available. It has been replaced by the web based version which is available right now at www.bccalc.com. Supported browsers are Google Chrome (preferred browser), Internet Explorer, and Safari. (Firefox is not supported.)
You may use the basic features as an anonymous guest, or register for full access to the program.
Here are other related links