Scientific Calculator
Evaluate an expression with powers, roots, logarithms, trigonometry and factorials.
Your result
MATHEnter your values and select calculate.
On this page How it works & practical examples
How to use the Scientific Calculator
Use parentheses to make your intended grouping clear and an asterisk for multiplication, such as 2*pi. Supported functions are sin, cos, tan, sqrt, abs, ln, log and exp. ln is the natural logarithm and log is base 10. Constants pi and e are available. The angle setting applies only to trigonometric functions. A keypad can insert common symbols, but expressions can also be typed directly.
The calculation
Worked example
sqrt(144) + 2^3 evaluates to 20. In degrees, sin(30) evaluates to 0.5. ln(e) evaluates to 1.
Assumptions and limits
This tool evaluates real-valued expressions with floating-point arithmetic. It does not support complex numbers, symbolic simplification or implicit multiplication. Powers associate right to left, so 2^3^2 is 512. Unary minus follows exponentiation, so -2^2 is -4. Factorial accepts whole numbers from 0 to 170. Undefined operations produce an explanation instead of a number.
Common questions
Why does 0.1 + 0.2 look different in some programs?
Many decimals do not have an exact binary floating-point representation. Display rounding hides small representation errors, but it does not make the internal arithmetic exact.
What is the difference between degrees and radians?
A full turn is 360 degrees or 2*pi radians. Choosing the wrong angle mode changes the interpretation of sin, cos and tan.