A financial calculator or business calculator is an electronic calculator that performs financial functions commonly needed in business and commerce communities[1] (simple interest, compound interest, cash flow, amortization, conversion, cost/sell/margin, etc.). It has standalone keys for many financial calculations and functions, making such calculations more direct than on standard calculators.[2] It may be user programmable, allowing the user to add functions that the manufacturer has not provided by default.[3]
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Examples of financial calculators are the HP 12C, HP-10B and the TI BA II.[4]
A wide number of graphing calculators, like the Casio FX-9860GII, the Texas Instruments TI-89 Titanium, and the Hewlett Packard HP 48gII include complex financial calculations, as do spreadsheet applications such as Microsoft Excel, LibreOffice Calc, and Google Sheets.