Basic Calculator
Quick everyday math with a clean keypad, memory keys and a history of recent answers.
- 100% Free
- Instant Results
- No Sign Up
Basic Calculator
A simple calculator with memory and history
More Math Calculators
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- Fraction CalculatorAdd, subtract, multiply and divide fractions
- Big Number CalculatorExact math on numbers with thousands of digits
- Triangle CalculatorSolve any triangle from three known values
- Standard Deviation CalculatorPopulation or sample standard deviation with steps
- Random Number GeneratorRandom integers or decimals in any range
- Quadratic Formula CalculatorSolve ax² + bx + c = 0 with exact roots
- Area CalculatorArea of rectangles, triangles, circles and more
- Calculators
- 204+
- Free to use
- 100%
- Results as you type
- Instant
How the basic calculator works
Tap the keys or type on your keyboard, then press = or Enter. Multiplication and division happen before addition and subtraction, just like on a school calculator, and parentheses let you group steps.
% divides a number by 100, √x takes the square root, x² squares and 1/x gives the reciprocal. M+ and M− add the current answer to memory or take it away, and MR brings it back.
Your last 10 calculations stay in the history panel on this device. Click any of them to load it again.
Using and checking your result
Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.
Share links may contain your input values. Anyone with the URL can read them; avoid sharing sensitive personal or financial information.
