Angle Converter
Convert degrees, radians, gradians, turns, and arcminutes.
Every angle unit, one value
Angles come in more units than most people expect: degrees for everyday geometry, radians for trigonometry and CSS animation math, gradians in surveying, and turns for rotation. Enter a value in one and this converts it to the rest — 180 degrees is exactly pi radians, or 0.5 of a turn.
In practice the confusion is between degrees and radians: CSS transforms and spreadsheets take degrees, while JavaScript's Math functions and most trig work in radians, so a rotation that looks right in one is 57× off in the other if you forget to convert.
Reading the result
Radians are shown as a decimal, so use the pi reference when you need a symbolic expression like pi/2. Your values are converted on the page and never sent anywhere.
Frequently Asked Questions
How does the angle converter work?
Angles normalize to degrees, then convert to the selected target. 180 degrees equals pi radians and 0.5 turns.
When should I use this converter?
Use it for CSS transforms, geometry, trigonometry, navigation bearings, animation timing, and chart labels.
What is the main limitation?
Radians display as decimals; use the pi hint when you need a symbolic expression.
Is this converter private?
Yes. The conversion runs entirely in your browser, so your values are not uploaded, stored, or sent to a server.
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