The online scientific calculator is a free, powerful tool that helps you perform various math calculations, including basic arithmetic operations, trigonometric functions, logarithmic functions, factorial, square root, cube root, absolute value, number base conversion, angle conversion, and more. Whether you are a student, teacher, engineer, or anyone needing scientific calculations, this tool meets your needs.

What is a scientific calculator?

Usage Instructions:

• Enter your calculation in the input box.
• Click the "Calculate" button to get the result.
• Supports various operators and functions, such as: +, -, *, /, sin, cos, tan, log, sqrt, etc.

Frequently Asked Questions:

• How to input fractions?
• How to input square roots?
• How to input trigonometric functions?

Our online scientific calculator has the following advantages:

• Free to use: No registration or payment required.
• Powerful features: Supports many math operations and functions.
• Easy to use: User-friendly interface.
• Safe and reliable: Protects your privacy, does not collect any personal information.

Experience our online scientific calculator now, and make your math calculations easier!

It is recommended to open this website on a computer or laptop.

It follows the P.E.D.M.A.S calculation method

• P - Parentheses
• E - Exponents
• D - Division
• M - Multiplication
• A - Addition
• S - Subtraction

Write operands or values before using any function or operator.

For sin, cos, and tan functions, the angle value taken is in radians, not in degrees.

Explanation:

These functions require values in radians. Therefore, if we write 45 on the screen, it will not be considered as 45°, but as 45 radians.

The relationship between radians and degrees:

π radians = 180°

Example: To get the value of tan(45°)

i) Convert from degrees to radians

Conversion formula:

Radian value = (π / 180°) * degree value

Calculation:

Radian value (45°) = (π / 180°) * 45°

Radian value (45°) = 0.7853981633975

ii) After getting the radian value on the screen, press tan

Calculation:

tan(0.7853981633975) = 1.0000000000001033

This is how you use trigonometric functions in this calculator.

Special functions: ceil() and floor()

4.1. ceil(x) - This function returns the smallest integer greater than or equal to x.

Example:

ceil(3.2) = 4

ceil(3) = 3

ceil(-3.2) = -3

ceil(-3) = -3

4.2. floor(x) - This function returns the largest integer less than or equal to x.

Example:

floor(3.2) = 3

floor(3) = 3

floor(-3.2) = -4

floor(-3) = -3