Angle Converter
Convert between degrees, radians, gradians, turns, arcminutes and arcseconds.
How to Use the Angle Converter
Convert between degrees, radians, gradians, turns, arcminutes and arcseconds.
- Select the "From" unit — choose the angle unit you want to convert from.
- Enter a value — type any number into the input field. Results update in real time.
- Select the "To" unit — choose the target angle unit.
- Swap if needed — click the swap button to reverse the conversion direction.
- Copy the result — click Copy to send the value to your clipboard.
All conversions run entirely in your browser using exact mathematical constants.
Frequently Asked Questions
How do I convert degrees to radians?
Multiply degrees by π/180. For example, 180° × π/180 = π radians. Common values: 90° = π/2 rad, 180° = π rad, 360° = 2π rad.
What is a gradian?
A gradian (also called a gon or grad) divides a right angle into 100 equal parts instead of 90. A full circle is 400 gradians. Gradians are used in some surveying and engineering applications.
What is a turn?
A turn is one complete revolution — 360 degrees, 2π radians, or 400 gradians. Half a turn = 180°, quarter turn = 90°.
How many arcminutes in a degree?
There are 60 arcminutes in 1 degree and 3,600 arcseconds in 1 degree (since 1 arcminute = 60 arcseconds). These subdivisions are used in astronomy, navigation and surveying for precise angular measurements.
When should I use radians vs degrees?
Radians are the standard unit in mathematics, physics and most programming languages (Math.sin, Math.cos use radians). Degrees are more intuitive for everyday use, navigation and many engineering applications.
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