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Scientific Calculator

Calculate expressions with powers, roots, logarithms and trigonometry.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Enter an expression such as sqrt(144) + 2^3. Supported functions: sqrt, abs, ln, log (base 10), sin, cos and tan. Trigonometric inputs use radians; pi and e are constants. Powers associate right-to-left; -2^2 means -(2^2). Use * for multiplication. Results use floating-point arithmetic, not symbolic algebra. Your expression stays in this browser.

How to use it (step by step)

  1. 1Fill in the boxes: “Expression (trigonometry in radians)”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

Logarithm / root
A root undoes a power (the square root of 9 is 3). A logarithm asks “what power gives this number?” (log₁₀ 100 = 2).
Scientific calculator
A calculator with extra buttons for powers, roots, sine/cosine and logarithms, used in school and engineering.

More in Math

Significant Figures CalculatorRound a number to a chosen number of significant digits.Rounding CalculatorRound, floor or ceil to a decimal place.Logarithm CalculatorFind log base b of a positive number.Nth Root CalculatorFind real integer roots, including odd roots of negatives.Modulo CalculatorFind a non-negative remainder for integer division.Triangle CalculatorArea, perimeter and angles from three sides.