Calculators
Scientific Calculator
A free online scientific calculator for trigonometry, logarithms, powers, roots, factorials and constants like π and e. Type with your keyboard or tap the keys, switch between degrees and radians, and get instant results.
Tip: you can type directly with your keyboard. Enter = equals, Esc = clear.
Frequently asked questions
What can this scientific calculator do?
It handles arithmetic, parentheses, powers and roots, factorials, trigonometry (sin, cos, tan and their inverses), logarithms (log and ln), and the constants π and e.
How do I switch between degrees and radians?
Use the Degrees/Radians toggle above the keypad. It changes how trigonometric functions interpret angles, so pick the one your problem uses.
Can I type with my keyboard?
Yes. You can type numbers and operators directly; press Enter to calculate and Esc to clear, or use the on-screen keypad.
Is it free and private?
Completely. Every calculation runs in your browser — nothing is uploaded — and there's no sign-up or limit.
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