Scientific Calculator
A free scientific calculator that runs entirely in your browser. Trigonometry, logarithms, powers, roots and factorials — type on your keyboard or tap the buttons.
Angles in degrees by default. Use ^ for powers, ! for factorial, pi and e as constants. Keyboard: type the expression and press Enter.
Your result will appear here
Result
How to use
- Type your expression in the box — for example sin(30) + 2^10 — or tap the buttons.
- Choose degrees or radians for trigonometry, then click Calculate or press Enter.
- Read the answer below, and use Ans in your next expression to build on it.
Frequently asked questions
What is sin(30) on this calculator?
In degrees mode, sin(30) = 0.5. Switch to radians if your angles are in radians — sin(30) in radians is about −0.988.
Does it support logarithms and factorials?
Yes. log(x) is base 10, ln(x) is the natural logarithm, and x! works for whole numbers from 0 to 170. Try log(100) = 2, or 5! = 120.
Can I use my keyboard?
Yes — click the expression box and type normally, using ^ for powers, * for multiply and / for divide. Press Enter to calculate.
Is my calculation private?
Yes. Everything is calculated in your browser with a built-in parser — nothing is sent to a server, and there is no account or sign-up.
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