Updating live: standard four-function arithmetic with operator precedence. Need powers or roots? Try the scientific calculator. Want percentages? Use percentage.
Type a number, press an operator (+, −, ×, ÷), type a second number, and press equals. The tool performs the arithmetic and displays the result. It handles one operation at a time in the order you enter them — like a handheld pocket calculator. Use C to clear everything, or the backspace key to delete the last digit. Keyboard input is fully supported.
No — this is a simple sequential calculator, like a basic handheld model. It evaluates each operation as you press equals or chain another operator. For expressions that need PEMDAS, break them into steps or use a scientific calculator.
Yes. Number keys, +, -, *, and / all work. Press Enter for equals and Escape or Delete to clear. Backspace removes the last digit.
This calculator uses JavaScript's standard number type, which safely handles integers up to about 9 quadrillion and decimals to roughly 15–17 significant digits. Beyond that, results may lose precision.
This is a well-known floating-point rounding artifact in all computers, not a bug. Binary representation can't express some decimal fractions exactly. For everyday math the difference is negligible.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.