Free Online Scientific Calculator

Our free scientific calculator online provides advanced mathematical functions in an easy-to-use interface. Whether you're a student, engineer, or scientist, this tool helps you perform complex calculations with precision.

How to Use the Scientific Calculator

The calculator has two modes: Basic and Scientific. Switch between them using the tabs at the top of the calculator.

Basic Functions:

Arithmetic operations: Addition (+), subtraction (-), multiplication (×), division (÷)
Percentage calculations: Use the % button to calculate percentages
Memory functions: Store values with M+, recall with MR, clear memory with MC
Clear functions: AC clears everything, ⌫ removes the last digit

Advanced Scientific Functions:

Trigonometric functions: sin, cos, tan (with inverse functions)
Logarithmic functions: Natural log (ln), base-10 log (log)
Exponents and roots: Square (x²), cube (x³), arbitrary power (x^y), square root (√), cube root (∛)
Constants: π (pi) and e (Euler's number)
Factorial: Calculate n! for any positive integer

Online Scientific Calculator FAQ

How do I perform calculations with parentheses?

Use the ( and ) buttons to group operations. For example, to calculate (2+3)×4, enter: 2 + 3 ) × 4

How do I calculate exponents?

Use the x^y button for arbitrary exponents. For example, to calculate 2 to the power of 5, enter: 2 x^y 5 =

How do I use the memory functions?

Store a value in memory with M+, subtract from memory with M-, recall the stored value with MR, and clear memory with MC.

Can I use this calculator for trigonometry in degrees or radians?

This calculator uses radians for trigonometric functions. To convert degrees to radians, multiply by π/180.

What should I do if I get an "Error" message?

Press AC to clear the error and start a new calculation. Errors occur with invalid operations like dividing by zero or taking the log of a negative number.

How precise are the calculations?

The calculator uses JavaScript's built-in math functions, which provide precision up to about 15-16 decimal digits.

Why Use Our Scientific Calculator?

This online scientific calculator offers several advantages:

Free to use: No registration or fees required
Accessible: Works on any device with a web browser
Comprehensive: Covers both basic and advanced mathematical operations
User-friendly: Clean interface with intuitive button layout