Solution 11247: Interest Conversions on the BA II PLUS™ and the BA II PLUS™ PROFESSIONAL.
How can I convert from nominal interest rate to effective interest rate on the BA II PLUS or BA II PLUS PROFESSIONAL?To convert a nominal rate to an annual effective rate, use the Interest Conversion worksheet. Follow the example below to convert the interest:
A bank is offering a certificate that pays a nominal interest rate of 15% with quarterly compounding. What is the annual effective rate?
• Press [2ND] [ICONV].
• Press [2ND] [CLR WORK].
• Press   [ENTER].
• Press [↓] [↓]  [ENTER].
• Press [↑] [CPT].
For more information please check the BAII PLUS family guidebooks.