Radians to Degrees Converter

Convert any angle in radians to degrees. degrees = radians × 180/π.

Inputs

π/2 ≈ 1.5708, π ≈ 3.14159, 2π ≈ 6.28319.

Result

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General calculation reads

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How to use this calculator

  • Enter the radian value.
  • Read the equivalent in degrees.

About this calculator

Going from radians back to degrees: multiply by 180/π. Useful when working with calculus output (in radians) but presenting to engineers or students used to degrees. 1 radian ≈ 57.2958°.

Frequently asked

Why is 1 radian about 57.3°?+
Because 180° = π radians, so 1 radian = 180/π ≈ 57.2958°.
What is 2π in degrees?+
360° — a full circle.
Common radian-to-degree mappings?+
π/6 = 30°, π/4 = 45°, π/3 = 60°, π/2 = 90°, π = 180°, 3π/2 = 270°, 2π = 360°.
My calc gives 89.999999° instead of 90°?+
Floating-point representation of π. The true conversion of π/2 is exactly 90°, but π in floating point is approximate.
Are gradians a thing?+
Yes — 400 gradians in a circle. Used in some surveying contexts. This calculator does only deg/rad conversion.

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