Basic and scientific calculators, unit converter with more than 1100 units and currency converter with online updatable rates. All-in-one powerful but easy-to-use application.

Basic Calculator Large 12-digits display with very large and clear distinguishable numbers Large buttons enough for your fingers Arithmetic operations, square root, calculate using percentages, memory operations, 'call last result' button.

Scientific calculator 24-digit display with lots of graphic indicators Precedence mode - to reduce entering parenthesis (e.g. 2+2*2=6) Operations and conversions can be performed in binary, octal, decimal, and hexadecimal form Calculate basic arithmetic functions Calculate using percentages Calculate the root, square root or cube root of a number Raise to power functions Logarithmic and exponent functions Calculate sine, cosine, tangent, arc sine, arc cosine or arc tangent Calculate in degrees, radians or grads, mil, rev Displays results in normal, scientific, or fix mode Memory operations 'Call last result' button Operations with big and small numbers are supported (up to ten in 308th power or ten in minus 308th power)

Unit converter 1130 units in 67 categories. Great looking and eye appealing design. Built-in intuitive keyboard. No need to access to menus or pop-up keyboard. Results are calculated automatically when you type a number. Clear all and delete buttons. Ability to swap units. One click for Category and Unit From/To change. Ability to sort units and categories when selecting.

Currency converter 1130 units in 67 categories. Currency converter with rates updated from European Cental Bank. Keypad pane. Results are calculated automatically when you type a number. Ability to swap units. Fast units selection.

Best CalcMachine is a combination of three our products: Best Calc, Best Converter and Best Currency Converter in one easy-to-use application for a friendly price. If you do not need this application in a whole but prefer one of its parts you may find them here:

Best Calc


Best Converter


Best Currency Converter