Full-featured scientific calculator with trig, log, powers, memory and more.
A scientific calculator is an advanced calculating device that goes beyond basic arithmetic to include functions like trigonometry, logarithms, exponents, roots, and factorials. It is an essential tool for students in physics, chemistry, engineering, and mathematics.
The Scientific Calculator by Calculator Expert provides a fully functional scientific computing experience in your browser. It supports standard arithmetic operations, parentheses for order of operations, trigonometric functions (sin, cos, tan), inverse trig, logarithms, exponents, square roots, factorials, and memory functions.
| Function | Result | Note |
|---|---|---|
| sin(30°) | 0.5000 | sin(π/6) |
| cos(60°) | 0.5000 | cos(π/3) |
| tan(45°) | 1.0000 | tan(π/4) |
| log(1000) | 3.0000 | log₁₀(10³) |
| √144 | 12.0000 | 12² = 144 |
Enter your values in the empty input fields above and click "Calculate." All fields start empty so you can input any values you need. The result is displayed instantly with the working formula. Calculator Expert provides accurate, ad-free calculations for students, teachers, and professionals.
Method 1: Expression Parsing: The calculator parses the mathematical expression from left to right, respecting order of operations (PEMDAS/BODMAS) — parentheses first, then exponents, multiplication/division, and finally addition/subtraction.
Method 2: Function Substitution: Trigonometric and logarithmic functions are evaluated by substituting the argument into the corresponding JavaScript Math method. Degree inputs are converted to radians before computation.
This calculator operates in floating point arithmetic, which may introduce small rounding errors for very precise calculations. It evaluates expressions using JavaScript's built-in Math library. Trigonometric inputs are in degrees by default. Division by zero produces Infinity. Invalid expressions return an error message.
To compute the Ponderal Index manually, a scientific calculator is essential. PI = weight(kg) / height(m)³. Enter weight, then divide by height cubed: weight / (height × height × height). The result is compared to standard ranges for health assessment.
Scientific calculators are used in physics problem solving, chemistry stoichiometry, engineering design, signal processing, statistics, and any field requiring computation beyond basic arithmetic.