Unit Converters
Angle Converter
Angle Converter is a browser-based calculator tool on CalcToolsBase. Free, browser-based Angle Converter with instant, clearly-labelled results. No signup, no uploads. To use it, enter your values and view the result directly in your browser — no signup and nothing to install.
Give Angle Converter your value plus the source and target units and it returns the converted angle in the unit you choose straight away. Built to convert an angle measurement between units such as degrees, radians and gradians, it runs entirely on your device.
About this calculator
The Angle Converter is a browser-based tool that helps you convert an angle measurement between units such as degrees, radians and gradians. You enter your value plus the source and target units, and it applies fixed, standard conversion ratios to return the converted angle in the unit you choose. Everything runs locally — no sign-up, no uploads, nothing stored — so it stays fast and private.
Whether you need it once or every day, Angle Converter produces the converted angle in the unit you choose in a clean, readable layout. It runs entirely on your device, so it's quick to reach for and private to use.
How to use
- Enter the angle value you want to convert.
- Choose the unit you are converting from.
- Choose the unit you are converting to.
- Press Convert to see the result.
Why use Angle Converter
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard formulas where applicable; check critical results before relying on them.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Angle when converting between unit systems
Angle when reading a spec sheet
Angle for coursework and homework
Angle for science and research
Angle in trade and workshop work
Angle when standardising units in a report
Technical notes
Angle Converter converts between angle units — degrees, radians and gradians — through a radian base.
Conversions use standard reference factors; for trade or engineering tolerances keep more decimal places than the display shows.
Nothing you type is uploaded — the calculation happens entirely on your device.
FAQ
Which angle units are supported?
Common units such as degrees, radians, and gradians are supported, with the conversion shown both ways.
How many degrees are in one radian?
One radian is about 57.2958 degrees, and 180 degrees equals exactly pi radians.
Does it keep enough decimal places for radians?
Yes. Radian results are shown to several decimal places so values like pi are accurate.
Does the Angle Converter send my data to a server?
No. The Angle Converter runs entirely in your browser, so nothing you enter is uploaded, stored, or shared.
Worked example
Convert 180° to radians: 180 × π/180 = π ≈ 3.1416 rad.