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Angle: Enter a value to convert
| Degrees (°) | Radians (rad) |
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Switch between degrees and radians with this tool—ideal for trigonometry, geometry, or technical applications!
Degrees (°) measure angles, with 360° in a full circle. Radians (rad) are a metric unit, where 2π radians equal 360°, commonly used in math and physics.
Degrees trace back to ancient Babylon’s 360-day year approximation. Radians were introduced in the 18th century by mathematicians like Roger Cotes for calculus.
Degrees are widely used in everyday life, navigation, and education. Radians dominate in advanced math, engineering, and scientific computations.
Multiply degrees by π/180 (approx. 0.0174532925). For example, 90° × 0.0174532925 = 1.570796325 rad (π/2).
Yes, it uses the exact factor of 1° = π/180 rad for accurate results.
Definitely! Toggle the button to switch from degrees to radians or radians to degrees.