Yup! You can use a better Calculator


A Powerful Multi-Purpose Calculator and Converter

Check this one out: it is so full of functionality it wants to burst at the seams!


FINANCIAL: future value, present value, interest, payment, duration.

SCIENTIFIC: logarithms, powers, exponentials, factorials, roots, NIST/CODATA scientific constants.

CONVERSIONS: over forty categories of units from the common (length, volume, mass) to the technically advanced (electric charge, entropy, viscosity). Meter to foot, ounce to gram, liter to pint, day to minute, C to F...

DATE AND TIME: add or subtract periods to a date/time, find the difference between two dates/times.

NUMERIC BASES: binary, octal, hexadecimal, all bases from 2 to 36, simple notation.


COMPLEX NUMBERS: natively supported plus functions (argument, norm, polar, imaginary, more).

PRIME NUMBERS: verify primeness, identify next or previous prime.

RANDOM NUMBERS: real or complex, linear or Gaussian.

RATIONAL and FRACTIONAL numbers: input and output using ratios.

GENERAL MATHEMATICS: modulo, remainder, percent, factorial, rounding, ceiling, floor...

STATISTICS: group attributes (maximum, greatest common denominator, least common multiple, more) and distribution (variance, standard deviation, median, more).

HYPERBOLIC and TRIGONOMETRY: sine, cosine, tangent, cotangent, secant, cosecant, inverse functions.

QUICK ACCESS: on/off mode, selectable hotkey and shortcuts on task bar, desktop or start menu.

PREFERENCES: selectable keypads, adjustable button size, selectable font, top-level mode, Num-Lock, snap to screen position, switchable decimal mark.

NUMERIC FORMATS: scientific (1.23e-45), currency (12,345.00), fractional (1 2/3) and more, each format is customizable.

EDITABLE WORK AREA: better than a regular tape calculator. Enter full expressions, change the numbers, repeat any calculation. Annotate your work like a regular text editor. Save to file for later use as text (.txt) or rich-edit (.rtf) document. Restore saved work.

DETAILED HELP FILE explains all features.


Visit the Orefa.com web site and take a look at the "related" pages: the list of awards is very impressive. This is quality software.

What else do I need to know?

This is a shareware product, it is not given away for free. But it is quite cheap when you look at other calculator products, and it does a lot more than all others out there. A good value for an affordable product.

Any Freeware?

Well yes, there is a 1.x version of the program you can find at the Orefa.com web site. It remains available and is quite neat for a free calculator. It just doesn't have what serious users require. Just try both of them! :-)

AddUp 2

Find it at the Download.com web site


See A Sample of Financial Calculations Here

See details of Date/Time calculations here