Start typing to discover tools…
Free scientific calculation tool

Casio Calculator Online

Perform everyday arithmetic and advanced scientific calculations using a responsive Casio-style calculator. Calculate percentages, roots, powers, logarithms, trigonometric functions and more directly in your browser.

SCIENTIFIC ADVANCED CALCULATION MODE
DEG
Memory

Keyboard support: numbers, operators, parentheses, Enter, Backspace and Escape.

What Is a Casio Calculator Online?

A Casio calculator online is a browser-based calculation tool that provides an interface similar to a traditional scientific calculator. It can handle basic arithmetic as well as advanced mathematical operations without requiring a physical device or downloadable app.

This calculator is useful for students, teachers, professionals, engineers and anyone who needs fast access to scientific calculation functions. You can enter an expression, select the required mathematical function and view the result instantly.

Basic arithmetic calculations

Use the number and operator buttons to perform addition, subtraction, multiplication and division. Parentheses can be used to control the calculation order in longer expressions.

Scientific calculations

The tool supports square roots, powers, logarithms, natural logarithms, factorials, inverse values, percentages and absolute values. It also includes the mathematical constants π and e.

Trigonometric calculations

Calculate sine, cosine, tangent and their inverse functions. You can switch between degree and radian mode based on the requirements of your mathematical problem.

Calculator memory functions

  • MC: Clears the value stored in memory.
  • MR: Recalls the current value from memory.
  • M+: Adds the displayed value to memory.
  • M−: Subtracts the displayed value from memory.
Simple Instructions

How to Use the Casio Calculator

Enter your numbers and mathematical functions in three straightforward steps.

01

Enter Your Expression

Select numbers, operators, parentheses or scientific functions using the calculator keypad.

02

Choose the Correct Mode

Select DEG for degree-based trigonometry or RAD when your angle values are measured in radians.

03

Calculate the Result

Press the equals button or Enter key. Use AC to clear everything and begin another calculation.

Common Questions

Frequently Asked Questions

Helpful answers about the calculator, supported functions and calculation modes.

Yes. The online calculator is free to use and does not require registration, payment or software installation.
Yes. It supports trigonometric functions, inverse trigonometry, logarithms, square roots, powers, factorials, percentages, constants and memory operations.
DEG mode treats angles as degrees, while RAD mode treats angles as radians. Select the mode that matches the values in your mathematical problem.
Yes. The interface is responsive and works on modern mobile phones, tablets, laptops and desktop computers.
An error may appear when an expression is incomplete, parentheses are not balanced, division by zero is attempted or a function receives an unsupported value.
Trademark notice: This independent online calculator is not manufactured, sponsored or endorsed by Casio Computer Co., Ltd. “Casio” is used only to describe the commonly searched calculator style.