Basic Calculator

A CASIO-style calculator for performing basic arithmetic operations quickly in daily life and work. Memory and Grand Total (GT) functions make complex calculations easy.

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Essential Basic Calculator for Daily Life

A CASIO-style basic calculator that performs arithmetic operations quickly and accurately. Use directly in your web browser without installing any software. Conveniently handles all basic calculations needed in daily life and work.

Complex Calculations Made Easy with Memory Functions

Provides MR (Memory Recall), MC (Memory Clear), M+ (Memory Add), and M- (Memory Subtract) functions. Save intermediate calculation results in memory and recall them later for use, enabling accurate multi-step calculations without errors.

GT (Grand Total) Function for Cumulative Results

The Grand Total (GT) function automatically accumulates and displays the sum of multiple calculation results. Very useful when adding multiple numbers for bookkeeping or sales tallying. Press the GT button to instantly view the accumulated total.

Square Root and Percentage Calculation Features

Square root (√) calculation makes area and distance calculations easy. The percentage (%) function is used for discount calculations, tax calculations, and ratio calculations. Very convenient for quickly calculating discounted prices while shopping or calculating tips.

Fast Calculations with Keyboard Support

Supports both mouse clicks and keyboard input perfectly. Enter numbers quickly using the numeric keypad and perform calculations with operator keys (+, -, *, /). Confirm results with the Enter key and reset with the ESC key for efficient calculations.

Intuitive Interface Anyone Can Use

Button layout similar to actual CASIO calculators makes it easy for anyone to use. CE (Clear Entry) and AC (All Clear) buttons allow you to correct incorrectly entered content, and the +/- button quickly switches between positive and negative numbers.

Frequently asked questions

What do the MR, MC, M+, and M- buttons do?

M+ adds the current value to memory, M- subtracts it from memory, MR recalls the stored memory value, and MC clears memory. Useful for storing intermediate results to combine later.

When should I use the GT (Grand Total) function?

GT automatically accumulates each result confirmed with the = button. Enter a series of calculations one at a time, then press GT to instantly see the running total of all of them.

What is the difference between CE and AC?

CE (Clear Entry) clears only the number you just typed while keeping the ongoing calculation. AC (All Clear) resets the entire calculation, though it does not clear memory.

Can I calculate a discount using the percent (%) button?

Yes. For example, entering 10000 and 20% shows the percentage amount (2000), which you can subtract or add to quickly get a discounted or tax-included price.

When is the square root (√) function useful?

It is handy for finding the side length of a square from its area, or for statistics and engineering calculations like standard deviation. Enter a number and press √ to see the result instantly.