Free Angle Converter
Degrees for everyday angles, radians for calculus, gradians for surveying — the same turn of a wheel wears three different numbers. This free angle converter translates between all of them instantly, including arcminutes, arcseconds and full turns.
Value in all angle units
| Unit | Value |
|---|
How to Use the Angle Converter
- Enter a value in the input box above.
- Choose the units to convert from and to — use the ⇄ button to swap them instantly.
- See the result immediately, plus the value converted into every other angle unit in the table below.
- Copy the result with one click to use it anywhere.
Features
Seven angle units: degrees, radians, gradians, turns, arcminutes, arcseconds and milliradians. Live results, swap button, and a complete equivalence table.
Benefits & Use Cases
Students tackling trigonometry, engineers programming rotations, navigators, and game developers all get exact values without reaching for a calculator. Full double-precision math keeps small angles accurate.
Tips
180° = π radians ≈ 3.14159 rad — the single most useful angle fact. A full circle is 400 gradians, which is why surveyors like them: 100 gradians = a right angle.
Frequently Asked Questions
How do I convert degrees to radians?
Multiply degrees by π/180 (≈ 0.0174533). For example, 180° = π ≈ 3.14159 rad.
How do I convert radians to degrees?
Multiply radians by 180/π (≈ 57.2958). For example, 1 rad ≈ 57.30°.
What is a gradian?
1/400 of a full circle, so 100 gradians = 90°. Common in surveying.
How many arcminutes are in a degree?
60 arcminutes per degree, and 60 arcseconds per arcminute.
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