Moffsoft FreeCalc 2

Moffsoft FreeCalc is a great replacement for your existing Windows calculator. We took the standard Windows calculator functionality and added a printable/savable transaction tape, sizeable display, tray icon, digit groupings, color schemes, double and triple zero keys, visible memory value, "always on top" setting, and much more.

Tape - Save the calculator tape in up to five different file formats. You can also preview the tape report and customize the report title.
Decimal places - Use a floating point or fixed number of decimal places. If you enable "Auto decimal", Moffsoft Calculator 2 will enter the decimal for you.
Totals & grand totals - Pressing the {Enter} key two or three times in a row displays totals and grand totals for previous calculations.
Input logic - Use the input logic thats most natural for you. Algebraic works like most hand-held calculators, while Adding Machine functions similar to a desktop 10-key.
Multiple memory values - Store up to 5 values in memory.
Constants - Define an unlimited number of constant values.
Color schemes - Change the color and font of virtually anything.
Item count - Display the number of entries in a calculation.
Financial functions - Calculate loan payments, amortization schedules, depreciation, bonds, cash flows, and interest rate conversions.
Unit conversions - Over 100 units of measure in nine categories makes converting easy. (see example)
Date/Time calculations - Determine information about a specific date, or calculate the date 90 days from today.
Product Pricing - Calculate cost of goods sold, profit margin, markup, retail sales price, and gross profit.
Adjustable calculator size - Make it any size you want and Moffsoft Calculator 2 will remember the size and position next time you use it.
Tax button - Define your local rate to make adding sales tax easy.