Scientific Calculator

A full-featured scientific calculator supporting trigonometric functions, logarithms, exponentiation, roots, and mathematical constants. Switch between Degrees and Radians for angle-based calculations.

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Function Reference
Trig: sin(x) cos(x) tan(x) Inverse: asin(x) acos(x) atan(x) Log: log(x) = ln(x) | log10(x) = log₁₀(x) Power: x^n | sqrt(x) | x^2 Constants: pi = 3.14159… | e = 2.71828…
Common values (DEG mode)sincostan
0°010
30°0.50.8660.577
45°0.7070.7071
60°0.8660.51.732
90°10∞
How to use
Entering expressions

Type your expression using the buttons or keyboard. Functions like sin, cos, log require an opening parenthesis — e.g. sin(30). Close with ) before pressing =.

Degrees vs Radians

Toggle the DEG/RAD button in the top-right corner. In DEG mode all trig functions expect angles in degrees. In RAD mode they expect radians. The conversion is applied automatically.

Constants

π inserts 3.14159… and e inserts 2.71828… — use them anywhere in your expression, e.g. 2*pi*5 for the circumference of a circle with radius 5.

Ans key

Inserts the result of the previous calculation so you can chain operations without retyping.

Inverse trig (asin, acos, atan)

These return the angle whose sine/cosine/tangent equals the input. In DEG mode the result is in degrees; in RAD mode in radians.

Formula
log(x) → natural log (base e) log10(x) → common log (base 10) sqrt(x) → square root x^n → x to the power n asin/acos/atan → inverse trig
Tips
  • •Use parentheses to control order of operations: 2^(3+1) is 16, but 2^3+1 is 9.
  • •You can nest functions: sqrt(sin(45)) works fine in DEG mode.
  • •Press Escape to clear, Backspace to delete one character.