tier_2 conversion
Convert circle to radian
Convert circle to radian with a verified formula, worked example, conversion table, precision guidance, and reverse conversion.
circle to radian
circle to radian
Quick answer
1 circle = 6.2831853072 radian.
Formula
radian = circle × 6.283185307200000000000000000
Precision
The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.
How to convert circle to radian
- Enter a value in circle.
- The conversion is linear, so each circle is worth 6.283185307200000000000000000 radian.
- Round the displayed radian value only when needed.
About these units
circle is a unit used in angle conversions. Angle measures the separation or rotation between two directions. radian is a unit used in angle conversions. Angle measures the separation or rotation between two directions. Its recorded symbol is rad.
Explore related conversions
circle to radian conversion table
| circle | radian |
|---|---|
| 0 circle | 0e-27 radian |
| 1 circle | 6.28318530720 radian |
| 5 circle | 31.4159265360 radian |
| 10 circle | 62.8318530720 radian |
| 25 circle | 157.079632680 radian |
| 100 circle | 628.318530720 radian |
Frequently asked questions
How do I convert from circle to radian?
The conversion is linear, so each circle is worth 6.283185307200000000000000000 radian.
What formula does CalculatorHQ use for circle to radian?
radian = circle × 6.283185307200000000000000000
How should I round the result?
The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.
Can I convert radian back to circle?
Yes. Use the linked reverse conversion, whose formula is validated against this pair with round-trip tests.