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Radians to Degrees
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Radians to Degrees — quick reference

1 rad = 57.2958 deg
Common Radians to Degrees conversions
rad deg
1 rad 57.2958 deg
15 rad 859.4367 deg
30 rad 1718.8734 deg
45 rad 2578.3101 deg
60 rad 3437.7468 deg
90 rad 5156.6202 deg
180 rad 10313.2403 deg
270 rad 15469.8605 deg
360 rad 20626.4806 deg
// about this tool

Radians to Degrees Online

Updated 2026-10-24

Convert radians to degrees online for free. Enter an angle in radians and SnapTools shows the exact value in degrees instantly, in your browser. Nothing is uploaded.

Code speaks radians (atan2(), asin(), every trig function returns them), but people read degrees. A raw radian result like 1.5708 means nothing at a glance until you see it's 90°. This converter does the ×(180/π) math for you with full floating-point precision, so a script's output becomes something you can actually read. For the full family of angle units (gradians, arcminutes, turns), use the Angle Converter.

// how to use

  1. 1 Type or paste an angle in radians into the input.
  2. 2 SnapTools converts it to degrees as you type.
  3. 3 Copy the result, or use the slider for a quick scrub across a full 2π turn.

// examples

One radian
Input
1
Output
57.2958°
A quarter turn
Input
1.5708
Output
90.0002°

// common uses

Turning a Math.atan2()/asin()/acos() result into a human-readable degree value Reading trigonometry or physics output in a familiar unit Converting a robotics or CAD angle from radians to degrees Checking a manual angle conversion

// faq

Why does a full circle have exactly 360 degrees?
The convention traces back to Babylonian astronomers, who used a 360-day administrative calendar and divided the sun's yearly path into 360 parts. It stuck partly because 360 divides evenly by so many numbers (2, 3, 4, 5, 6, 8, 9, 10, 12, and more), which keeps common fractions of a circle at whole degrees.
Why would I need to convert a radian value to degrees?
Trig functions and math libraries return angles in radians, but a human-readable result (for a UI, a report, or a design tool) usually wants degrees. This converter bridges that gap.
What's the exact conversion factor?
Radians to degrees is radians × (180 / π). This tool computes it with full floating-point precision, not a rounded π.
Why is one radian about 57.3°?
A radian is the angle where the arc length equals the radius, since a full circle's circumference is 2π times the radius, one radian is 360° / 2π ≈ 57.2958°.
What about converting degrees back to radians?
Use Degrees to Radians, or the full Angle Converter for gradians, arcminutes, and turns.

// works with your data

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Use this via API

Get a free API key → 
curl -X POST https://thesnaptools.com/api/v1/tools/radians-to-degrees \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"value":"1"}'