🧮 Basic Calculator Online

Free online basic calculator for addition, subtraction, multiplication, division, percentages, brackets and everyday mathematical calculations.

🕘 Calculation History

No calculations yet.

Free Online Basic Calculator

AdiyogiTools Basic Calculator is a free online tool for performing everyday mathematical calculations. You can use it to add, subtract, multiply and divide numbers, work with percentages and brackets, calculate decimal values, and use memory functions.

Basic Calculator Features

Addition, subtraction, multiplication and division.
Percentage calculations.
Parentheses for grouped calculations.
Decimal number calculations.
Memory functions including MC, MR, M+, M− and MS.
Calculation history stored locally in your browser.
Keyboard support on desktop devices.
Copy calculation results.
Responsive design for mobile, tablet and desktop.

How to Use the Basic Calculator

Enter the numbers using the calculator keypad.
Choose the required mathematical operator.
Use brackets when you need to group calculations.
Press the = button to calculate the result.
Use the percentage button for percentage calculations.
Use the memory buttons when you need to temporarily store a numerical value.

Basic Calculator Formula

Addition: A + B

Subtraction: A − B

Multiplication: A × B

Division: A ÷ B

Percentage: A × (B ÷ 100)

Basic Calculator Examples

Addition: 25 + 75 = 100

Subtraction: 150 − 50 = 100

Multiplication: 12 × 5 = 60

Division: 100 ÷ 4 = 25

Percentage: 200 × 10% = 20

Is this Basic Calculator free?

Yes. You can use the AdiyogiTools Basic Calculator online without creating an account or installing software.

Frequently Asked Questions

What is a basic calculator?

A basic calculator is a tool used to perform common arithmetic operations such as addition, subtraction, multiplication and division.

Can I use this calculator on mobile?

Yes. The calculator is designed to work on smartphones, tablets and desktop computers.

Does the calculator support percentages?

Yes. The calculator includes a percentage function for common percentage calculations.

Does this calculator have memory functions?

Yes. It provides MC, MR, M+, M− and MS memory functions.

Can I see my previous calculations?

Yes. Calculation history is available on the page and is stored locally in your browser.

Can I use a keyboard with the calculator?

Yes. On supported desktop devices you can use number keys, operators, Enter, Backspace and Escape.