Perform calculations with our free online calculator. Includes basic operations and scientific functions for everyday use.
A calculator is a device that performs arithmetic operations on numbers. The simplest calculators can do only addition, subtraction, multiplication, and division.
Modern calculators are more sophisticated, capable of performing complex mathematical functions, storing results in memory, and even graphing equations.
Our online calculator provides both basic arithmetic operations and additional functions to help with everyday calculations, whether for work, school, or personal use.
Pro Tip: You can chain operations without pressing equals after each calculation. The calculator follows standard order of operations.