Scientific Calculator
A full scientific calculator in your browser.
Free · No sign-up · Works in your browser
About the Scientific Calculator
A free scientific calculator that runs right in your browser — no app to install and no sign-up. It handles everything a handheld scientific calculator does: trigonometry (sin, cos, tan and their inverses), natural and base-10 logarithms, square roots, powers and exponents, factorials, absolute value, parentheses for order of operations, and the constants π and e. Switch between degrees and radians for trig, and see your full expression and the answer side by side. Perfect for algebra, trigonometry, calculus, physics, and engineering homework.
How to use the Scientific Calculator
- 1Tap digits, operators, and functions to build your expression.
- 2Switch DEG/RAD for trigonometry if needed.
- 3Press = to evaluate.
Frequently asked questions
Is this scientific calculator free?
Yes — it's completely free, runs in your browser, and needs no download or account.
Does it do degrees and radians?
Yes — toggle the DEG/RAD mode button; trig functions use whichever you select.
How do I calculate a power or square root?
Use the ^ key for powers (or x² for squares) and the √ key for square roots. Parentheses control the order of operations.