About This Calculator
This calculator converts the circumference of a circle into its corresponding diameter and radius. You can optionally enter a custom value for π (Pi); if left blank, the calculator uses the default value of approximately 3.14159.
How It Works
Diameter =
Circumferenceπ
Radius =
Diameter2
Frequently Asked Questions
What units are used in this calculator?
The output uses the same units as those provided for the circumference input.
Is it necessary to enter a value for Pi?
No. If left blank, the calculator uses the default value of approximately 3.14159 for accurate results.
When should I use a custom value for Pi?
Custom Pi values are useful for school exercises or exams where Pi is specified as 3.14 or other simplified values.