Free Online Calculator

Perform basic calculations

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History

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Tips

Basic Operations

  • Click on numbers and operators to perform calculations
  • Use AC to clear all input, C to clear current input
  • Click = to calculate the result
  • All calculations are saved in the history
  • Quick basic calculations including addition, subtraction, multiplication, and division
  • Free online calculator, no download or registration required

Scientific Operations

  • Switch to scientific calculator for advanced functions
  • Supports trigonometric functions, logs, and powers
  • Toggle between Radians (RAD) and Degrees (DEG)
  • Use memory functions (M+, M-, MC, MR) to store values
  • Calculate square root, cube root, and other advanced mathematical operations
  • Fullscreen mode provides a larger calculation interface