Unit Converters
Angle Converter
Angle: angle Converter converts between angle units — degrees, radians and gradians — through a radian base. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
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
Angle Converter converts between angle units — degrees, radians and gradians — through a radian base. It matters whenever the same quantity is expressed in two systems and a wrong factor silently breaks the answer. Worked below as Convert 180° to radians: 180 × π/180 = π ≈ 3.1416 rad . — and the calculator on this page repeats exactly that working for your inputs, instantly, and offline after load.
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
Use it when converting between unit systems
Use it when reading a spec sheet
Use it for coursework and homework
Use it for science and research
Angle in trade and workshop work
Use it 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.