Scientific Calculator
Perform basic and advanced mathematical calculations online. Calculate trigonometric functions, powers, roots, logarithms and more.
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Enter an expression or use the calculator buttons.
Calculation History
Your recent calculations will appear here.
Tips: Choose DEG for degrees and RAD for radians. Use parentheses for grouped expressions. Percentage (%) divides the preceding value by 100. Factorial (!) is for non-negative whole numbers. Trigonometric inverse functions return angles using the selected mode.
How to Use the Scientific Calculator
Enter a mathematical expression or select the calculator buttons. Use sin, cos, tan, logarithms, powers, roots and factorials, then press equals to calculate your answer. Your recent results appear in the history section and can be selected again.
The calculator supports standard arithmetic precedence and parentheses. For example, sin(30) equals 0.5 in DEG mode, and 2+3×4 equals 14. Calculations use JavaScript floating-point arithmetic, so some results are approximations.