The Scientific Calculator is an advanced mathematical tool that handles complex calculations beyond basic arithmetic. It supports trigonometric functions, logarithms, exponents, roots, factorials, constants (π and e), and both degree and radian modes — everything you need for algebra, calculus, physics, and engineering problems.
Scientific calculators became essential tools in education and professional fields starting in the 1970s. Today, our free online version provides the same functionality as physical calculators costing $20–$100, with the convenience of being accessible from any device with a web browser.
How the Formula Works
Supports standard mathematical notation with operator precedence (PEMDAS/BODMAS). Trigonometric functions (sin, cos, tan and their inverses), logarithmic functions (log base 10, natural log ln), exponential functions (e^x, 10^x), power and root functions (x², x³, √x, ∛x, x^y), and factorial (n!).
How to Use This Calculator
Enter numbers and operators using the on-screen buttons or keyboard
Toggle between Degree and Radian mode for trigonometric calculations
Use parentheses for complex expressions to control order of operations
View calculation history to reference previous results
Use the ANS button to use the previous result in a new calculation
Tips & Best Practices
Always check whether you're in Degree or Radian mode before trigonometric calculations
Use parentheses generously to avoid order-of-operations errors
The natural logarithm (ln) uses base e; the common logarithm (log) uses base 10
Remember: sin²(x) + cos²(x) = 1 for any angle x
Important Limitations
Floating-point arithmetic may produce tiny rounding errors (e.g., sin(π) might show as 1.2e-16 instead of exactly 0)
Very large numbers or very small numbers may lose precision
Does not support complex number arithmetic, matrices, or symbolic math