Circumference to Radius
Convert Circumference to Radius instantly with our free calculator. Essential for professionals and students. Get precise results with detailed tables and fo...
1 Circumference = 0.159155 Radius (standard conversion factor). · Updated 2026-05-29
Circle Calculator
Circumference to Radius Conversion Table
Common Circumference to Radius conversion values
| Circumference | Radius |
|---|---|
| 1 C | 0.159 r |
| 10 C | 1.592 r |
| 50 C | 7.958 r |
| 100 C | 15.915 r |
| 500 C | 79.577 r |
| 1000 C | 159.155 r |
The formula
Circle conversions use π-based geometry (radius, diameter, circumference, area).
Example: 1 Circumference = 0.159155 Radius