How to Use Scientific Calculator
A full scientific calculator with trig, logs, powers and constants.
Open the Scientific Calculator tool →What is Scientific Calculator?
A full scientific calculator with trig, logs, powers and constants. It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use Scientific Calculator
- Open the Scientific Calculator tool.
- Enter your values or options.
- The result updates instantly as you type.
- Use or copy the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
Does it do trig and logarithms?
Yes — sine, cosine, tangent, natural and base-10 logs, square roots, powers, and the constants π and e.
Do the trig functions use degrees?
They use radians (the standard). Convert degrees by multiplying by π/180.
Ready to try it?
Open Scientific Calculator →