Scientific Calculator Online
Evaluate expressions with advanced math functions instantly
Shortcuts: Ctrl/Cmd+Z Undo, Ctrl/Cmd+Y Redo, Ctrl/Cmd+Enter Calculate & Save
Calculate complex math expressions in your browser
This scientific calculator lets you evaluate expressions with advanced operators and functions directly in your browser. Use trigonometry, roots, powers, logarithms and constants with real-time results and error feedback.
Key features
- Scientific functions: sqrt, sin, cos, tan, log10, ln, exp, abs and factorial.
- RAD/DEG angle mode and inverse trig (asin, acos, atan).
- Expression editing helpers: undo, redo, backspace and smart insertion.
- Local history and ANS value for faster repeated calculations.
Use cases
- Checking formulas in engineering and data analysis workflows.
- Learning algebra, trigonometry and function behavior.
- Quickly validating calculations during coding or testing.
- Comparing multiple expression variants with history reuse.
Frequently Asked Questions
What can this scientific calculator solve?
It evaluates arithmetic and scientific expressions, including roots, powers, trigonometric functions, logarithms, constants and nested parentheses.
Does it support trigonometric calculations in degrees?
Yes. You can switch between RAD and DEG modes, and inverse trig functions will follow the selected mode.
Can I reuse previous results?
Yes. The calculator keeps local history and supports ANS so you can continue calculations from previous outputs.
Is this online scientific calculator free?
Yes. It is free to use with no signup required.