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Basic and scientific calculations in your browser
Free online calculator with basic arithmetic and scientific modes. Includes trigonometry, logarithms, exponents, and more.
Standard calculator with basic arithmetic operations
Advanced calculator with trigonometry, logarithms, and more
Add, subtract, multiply, and divide
Trigonometry, logs, exponents
Use your keyboard for fast input
View your calculation history
One-click copy to clipboard
Use instantly, no account needed
Homework and exam prep
Quick technical calculations
Interest and percentage calculations
Tips, splits, and conversions
Basic mode supports addition, subtraction, multiplication, division, percentages, and square roots.
Scientific mode includes trigonometric functions (sin, cos, tan), logarithms (log, ln), exponents, factorials, and more.
Yes! Use number keys for input, operators (+, -, *, /) for operations, Enter to calculate, and Escape to clear.
All our tools are free to use, with no signup required. Your data never leaves your browser.