Scientific calculation without leaving the browser.

This calculator ports the mathematical behavior from the Calqen app source into a browser engine. Type naturally, use the keypad, or switch to RPN.

Scientific Calculator

Try: sin(30), log_2(8), root(3,27), ncr(10,3) or 5!.

DMS Converter

Convert decimal degrees to degrees-minutes-seconds or back.

Decimal degrees

Degrees

Minutes

Seconds

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Combinatorics & Natural Number Tools

Functions included in the app: nPr, nCr, sum of first n natural numbers and numeric-value count.

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Sum of first n natural numbers

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Count numeric values

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Function Table

Evaluate f(x) over a start/end range with a chosen step.

f(x)

Start

End

Step

x	f(x)
Run the function table.

Supported scientific expressions

The browser engine supports standard arithmetic, implicit multiplication such as 2π and 3(4+1), powers, factorial, square roots and nth roots, trigonometric and inverse-trigonometric functions, ln, base-10 log, custom logarithm bases such as log_2(8), constants π and e, prime tests, nCr, nPr and previous-answer reuse.

In RPN mode, separate values and operations with spaces, for example 3 4 + 2 *.