Free online scientific calculator with trig functions (sin, cos, tan), logarithms, exponents, factorial, and pi
Works in degrees and radians with history...
Click the DEG/RAD button to toggle modes. Use degrees for practical problems (angles in everyday life) and radians for calculus and pure math. The current mode is shown on the display.
This calculator includes sin, cos, tan and their inverses (arcsin, arccos, arctan). Also available: hyperbolic functions (sinh, cosh, tanh) and their inverses. All work in both degree and radian modes.
Use LOG for base-10 logarithms and LN for natural logarithms (base e). For other bases, use the formula: log_b(x) = log(x) / log(b). The calculator also has 10^x and e^x for inverse operations.
Yes. Expressions are evaluated using standard order of operations: parentheses first, then exponents, then multiplication and division, then addition and subtraction. Use parentheses to group terms when you need to override the default precedence, and the calculator history lets you review each step.
Yes. In guest mode you can export your calculations to JSON. Signing in adds PDF and CSV export. Click the export button to download your results — useful for record-keeping, sharing, or importing into other tools.
Yes. Your calculation history is saved automatically. As a guest you can keep up to 50 calculations per workspace on your device. Sign in for free to keep up to 100 per workspace and access them from any device.
Yes. The Scientific Calculator is free to use with no sign-up required. A free account adds more calculation history, multiple workspaces, and access to your saved data from any device.
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Scientific Calculator
Advanced calculator with scientific functions, trigonometry, and logarithms.