Radius to Diameter
Convert Radius to Diameter. Example: 1 Radius = 2 Diameter. Includes formula and conversion table.
1 Radius = 2 Diameter (standard conversion factor). · Updated 2026-07-12
Circle Calculator
Radius to Diameter Conversion Table
Common Radius to Diameter conversion values
| Radius | Diameter |
|---|---|
| 1 r | 2.000 d |
| 10 r | 20.000 d |
| 50 r | 100.000 d |
| 100 r | 200.000 d |
| 500 r | 1000.000 d |
| 1000 r | 2000.000 d |
The formula
Circle conversions use π-based geometry (radius, diameter, circumference, area).
Example: 1 Radius = 2 Diameter