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Scientific calculator
A full scientific calculator: trig in degrees or radians, powers, roots, logs, factorials and history. Type or tap.
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- No sign-up
- Works on any device
About Scientific calculator
A full calculator with sin, cos and tan in degrees or radians, powers, roots, logarithms, factorials and a history of past results. You can type with the keyboard or tap the buttons. Check the degree and radian setting first, as sin(90) is 1 only in degrees.
How to use Scientific calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
Why is my sin or cos answer wrong?
Most often the angle mode is wrong. If you enter degrees while the calculator is in radians, results look off. Switch the DEG and RAD setting to match your angle.
Is Scientific calculator free?
Yes. Scientific calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.