Converters
Angle converter
Convert degrees, radians, gradians, turns, arcminutes and arcseconds in an instant.
- Instant
- Free
- Private (processed locally)
- No sign-up
Convert an angle in an instant
Type a value in any field — degrees, radians, gradians, turns, arcminutes/arcseconds — and read all equivalents. Ideal for math and code.
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Pick a unit
degree, radian, gradian…
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Type a value
The others compute themselves.
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Read the references
Equivalence table.
Key equivalents
- 360° = 2π rad = 1 turn
- 180° = π rad
- 90° = π/2 rad = 100 gradians
- 1° = 60 arcminutes
Some references
| Angle | ° | rad |
|---|---|---|
| Right angle | 90 | 1.5708 |
| Straight angle | 180 | 3.1416 |
| Full turn | 360 | 6.2832 |
100% local and instant conversion. No data transmitted.
Frequently asked questions
How many radians in 180°?
180° = π radians ≈ 3.1416 rad. 90° = π/2 ≈ 1.5708 rad. 360° = 2π ≈ 6.2832 rad = 1 turn.
What is a gradian?
The gradian (or gon) divides the circle into 400 parts: a right angle is 100 gradians. Useful in surveying.
How do the linked fields work?
All units share the degree as a base. Type a value in one field and the others update instantly.
Is my data uploaded?
No. The conversion is instant and purely local, with no network calls.