Radius to Diameter Reference Values
Convert radius to diameter with the basic relationship d = 2r.
Table of Contents
Reference Value Index
This page lists 20 reference values for quick browsing and lookup.
All Reference Values
- 1 units = 2 units
- 2 units = 4 units
- 3 units = 6 units
- 4 units = 8 units
- 5 units = 10 units
- 6 units = 12 units
- 7 units = 14 units
- 8 units = 16 units
- 9 units = 18 units
- 10 units = 20 units
- 11 units = 22 units
- 12 units = 24 units
- 13 units = 26 units
- 14 units = 28 units
- 15 units = 30 units
- 16 units = 32 units
- 17 units = 34 units
- 18 units = 36 units
- 19 units = 38 units
- 20 units = 40 units
Reference Table
| Radius | Diameter |
|---|---|
| 1 units | 2 units |
| 2 units | 4 units |
| 3 units | 6 units |
| 4 units | 8 units |
| 5 units | 10 units |
| 6 units | 12 units |
| 7 units | 14 units |
| 8 units | 16 units |
| 9 units | 18 units |
| 10 units | 20 units |
| 11 units | 22 units |
| 12 units | 24 units |
| 13 units | 26 units |
| 14 units | 28 units |
| 15 units | 30 units |
| 16 units | 32 units |
| 17 units | 34 units |
| 18 units | 36 units |
| 19 units | 38 units |
| 20 units | 40 units |
Frequently Asked Questions
Frequently asked questions for Radius to Diameter and its reference values.
What does the Radius to Diameter calculator do?
It calculates switching between radius-based and diameter-based dimensions in geometry and fabrication from the values you enter.
What formula does the Radius to Diameter calculator use?
Diameter = 2 × radius.
What inputs are valid?
Enter a non-negative or positive radius value. For physical circles, radius should be positive.
When would I use this?
switching between radius-based and diameter-based dimensions in geometry and fabrication
Methodology and Review
Each row on this page links to a value detail page derived from the same conversion data file as the main calculator and reference table. This reduces inconsistencies across page variants.
Editorial metadata and structured data are rendered across the converter page and linked value pages. Review policies are documented in our review process and editorial policy.