Angle conversion, made clear
Radians and degrees, without the guesswork.
A fast, accurate converter for students, engineers, and anyone working with angles. Type a decimal or a π expression and get the exact steps.
Radians to degrees
degrees = radians × 180 / π
Because a half turn is π radians and 180°, multiplying by 180/π changes the unit without changing the angle.
Examples
Common angle conversions
π/6→30°
π/4→45°
π/2→90°
π→180°
2π→360°
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Questions
Frequently asked questions
What is the relationship between radians and degrees?
A full circle is 2π radians or 360 degrees. Therefore π radians equals 180 degrees.
Can I enter π expressions?
Yes. Enter expressions such as π/2, 3π/4, 2π, or a decimal. The parser is deliberately limited to safe arithmetic.
Are the calculations performed on a server?
No. The interactive calculation runs in your browser and does not require an account.