Basic Calculator

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Introduce

Explore our user-friendly online calculator, designed with memory functions reminiscent of a compact handheld device. It's perfect for basic math operations like addition, subtraction, multiplication, and division.


But that's not all! Our calculator also comes equipped with additional functions such as square roots, percentages, pi, exponents, powers, and generate random number.

Functions on the CalculatorLib

Step-by-Step Calculator

Learn how to use your basic calculator with easy-to-follow instructions. Discover how to input numbers and symbols, perform simple math, and calculate percentages.

Addition and Subtraction
3 + 5 = 8
7 - 9 = -2
Multiplication and Division
13 × 3 × 2 = 78
25 ÷ 2 = 12.5
Percentage Operations
CALCULATIONEXPLAINED
5 % 200 = 10 (5 × 200) / 100 = 10
200 + 5% = 210 200 + ((5 / 100) × 200) = 210
200 - 5% = 190 200 - ((5 / 100) × 200) = 190
200 × 5% = 10 200 × (5 / 100) = 10
200 ÷ 5% = 4000 200 ÷ (5 / 100) = 4000