Angle Converter Online
Free online angle converter. Convert between degrees, radians, gradians, turns, arcminutes, and arcseconds. Instant, precise results for math and engineering.
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Tip: Click any result row to instantly copy its value to clipboard
💡 Definition
Angle Converter
- An angle measures the rotation between two rays sharing a common endpoint.
- Degrees (°) divide a full rotation into 360 parts, radians use the ratio of arc length to radius (2π per rotation), and gradians divide a rotation into 400 parts.
- This tool converts between all major angle units.
📖 How to use
Step by Step
- Enter an angle value and choose your source unit from the Convert From dropdown
- All equivalent angle values appear instantly in the results grid
- The source unit row is highlighted in purple for clarity
- Click any result row to copy that value to your clipboard
🎯 Use cases
When to use
- Converting between degrees and radians for math
- Engineering and CAD angle calculations
- Surveying and navigation bearing conversions
- Trigonometry and physics problem-solving
Frequently Asked Questions
How do you convert degrees to radians?▾
Multiply degrees by π/180. For example, 90° = 90 × π/180 = π/2 ≈ 1.5708 radians. Conversely, multiply radians by 180/π to get degrees.
What is a gradian?▾
A gradian (also called gon or grad) divides a right angle into 100 parts, making a full circle 400 gradians. It is used in surveying and some European engineering fields.
What is an arcminute?▾
An arcminute is 1/60 of a degree. An arcsecond is 1/60 of an arcminute (1/3,600 of a degree). These units are used in astronomy, navigation, and GPS coordinates.