Scientific Calculator
A full-featured scientific calculator with trigonometry, logarithms, and advanced math functions.
A full-featured online scientific calculator with trigonometry (sin, cos, tan), logarithms, powers, roots, parentheses, and memory — no app install required. Works on desktop, tablet, and phone.
Designed for homework, engineering quick checks, and exam practice when a physical calculator is not handy. Supports degree and radian modes for trig functions.
Keyboard-friendly layout mirrors familiar hardware calculators. All computation happens locally in your browser for speed and privacy.
Free forever. Bookmark for math class, physics labs, and field work.
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Common Uses
- ✓Algebra and calculus homework
- ✓Physics and engineering problem checks
- ✓Trigonometry and log exercises
- ✓Quick calculations without installing software
- ✓Backup when physical calculator battery dies
How to Use the Scientific Calculator
- 1
Enter your expression
Type numbers and operators using the calculator buttons or your keyboard.
- 2
Use function buttons
Press sin, cos, log, sqrt, etc. for advanced calculations.
- 3
Press equals
Press = or Enter to calculate the result.
💡 Tips & Tricks
- •Use parentheses to control the order of operations in complex expressions.
- •Press AC to clear all and C to delete the last entry.
- •Switch between degrees and radians for trigonometric calculations.
Frequently Asked Questions
What functions does the scientific calculator support?
What is the order of operations?
How do I calculate sin, cos, or tan?
What is the difference between log and ln?
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