Basic Calculator

Use our free basic calculator to perform simple arithmetic operations — addition, subtraction, multiplication, and division. Fast, accurate, and easy to use.

Math

Operation

First Number

Second Number

Formula

Basic arithmetic is the foundation of mathematics. Addition combines two numbers into a sum. Subtraction finds the difference between two numbers. Multiplication is repeated addition. Division splits a number into equal parts.

Result = A (op) B

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Select the operation you want to perform (add, subtract, multiply, or divide).
2Enter the first number in the designated field.
3Enter the second number in the designated field.
4Click the Calculate button to see the result.
5The result displays the answer along with a step-by-step breakdown.

Examples

Addition: 150 + 75

1.Select 'Add (+)' as the operation.
2.Enter 150 as the first number.
3.Enter 75 as the second number.
4.The sum is 150 + 75 = 225.

Result: 225

Multiplication: 12 × 8

1.Select 'Multiply (×)' as the operation.
2.Enter 12 as the first number.
3.Enter 8 as the second number.
4.The product is 12 × 8 = 96.

Result: 96

Division: 144 ÷ 12

1.Select 'Divide (÷)' as the operation.
2.Enter 144 as the dividend.
3.Enter 12 as the divisor.
4.The quotient is 144 ÷ 12 = 12.

Result: 12

Frequently Asked Questions

Division by zero is undefined in mathematics. If you try to divide by zero, the calculator will show 'Undefined (division by zero)' as the result.

Yes, you can enter decimal numbers. The calculator supports up to 6 decimal places in the result.

Yes, negative numbers are fully supported. You can enter any number between -999,999,999 and 999,999,999.

The calculator accepts numbers up to 999,999,999 and as low as -999,999,999, covering most everyday arithmetic needs.

Related Calculators

Addition Calculator Subtraction Calculator Multiplication Calculator Division Calculator Percentage Calculator Percentage Calculator

How to Calculate Percentages: A Complete Guide

CalculateMe Team

Last updated: 2026-07-13

Examples

Addition: 150 + 75

1.Select 'Add (+)' as the operation.
2.Enter 150 as the first number.
3.Enter 75 as the second number.
4.The sum is 150 + 75 = 225.

Result: 225

Multiplication: 12 × 8

1.Select 'Multiply (×)' as the operation.
2.Enter 12 as the first number.
3.Enter 8 as the second number.
4.The product is 12 × 8 = 96.

Result: 96

Division: 144 ÷ 12

1.Select 'Divide (÷)' as the operation.
2.Enter 144 as the dividend.
3.Enter 12 as the divisor.
4.The quotient is 144 ÷ 12 = 12.

Result: 12

Frequently Asked Questions

Division by zero is undefined in mathematics. If you try to divide by zero, the calculator will show 'Undefined (division by zero)' as the result.

Yes, you can enter decimal numbers. The calculator supports up to 6 decimal places in the result.

Yes, negative numbers are fully supported. You can enter any number between -999,999,999 and 999,999,999.

The calculator accepts numbers up to 999,999,999 and as low as -999,999,999, covering most everyday arithmetic needs.

Basic Calculator

Formula

How It Works

Examples

Addition: 150 + 75

Multiplication: 12 × 8

Division: 144 ÷ 12

Frequently Asked Questions

What happens if I divide by zero?

Can I use decimal numbers?

Can I use negative numbers?

Is there a limit to how large the numbers can be?

Related Calculators

Related Articles

Basic Calculator

Formula

How It Works

Examples

Addition: 150 + 75

Multiplication: 12 × 8

Division: 144 ÷ 12

Frequently Asked Questions

What happens if I divide by zero?

Can I use decimal numbers?

Can I use negative numbers?

Is there a limit to how large the numbers can be?

Related Calculators

Related Articles