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Angle converter
Convert degrees, radians, gradians, turns, arcminutes and arcseconds.
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- Works on any device
About Angle converter
Switch between degrees, radians, gradians, turns, arcminutes and arcseconds. The key relation is 180 degrees = pi radians, so one radian is about 57.2958 degrees. Programming languages and calculus use radians, while maps, construction and everyday talk use degrees.
How to use Angle converter
- Enter an angle value and choose the unit it is in.
- Pick the unit you want to convert to.
- Read the converted angle and the other units listed with it.
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.
- Free to embed on your own website, with a ready-made code to copy.
- Available in 10 languages.
Also known as
Frequently asked questions
How do I convert degrees to radians?
Multiply degrees by pi / 180. For example, 90 degrees is pi / 2, which is about 1.5708 radians.
When do I need radians instead of degrees?
Radians are used in most programming and calculus work, since math functions in code usually expect them. Degrees are more common in everyday use, maps and construction.
What are gradians?
A gradian splits a right angle into 100 parts, so a full circle is 400 gradians. They appear in some surveying work, but they are rare elsewhere.
Is Angle converter free?
Yes. Angle converter 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.
Can I put Angle converter on my own website?
Yes. Use the Embed on your site button under the tool to copy a short piece of code and paste it into your page. It is free, needs no account, and the tool keeps working inside your page.