Convertools

Radius to Diameter

Convert radius to diameter with the basic relationship d = 2r.

Author

Dr. Amara Osei

Math editorial contributor

Ghanaian computational linguist with a PhD from MIT, specializing in NLP for low-resource African languages

Reviewed by

Dr. Isabella Rossi

Math content reviewer

Italian neuroscientist at Sapienza University of Rome, studying the neural mechanisms of bilingual language processing

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. Reference values
  2. Calculator
  3. Reference table
  4. FAQs
  5. Methodology and review
  6. Related conversions

11 units =

22 units

Representative value from the Radius to Diameter reference table.

Reference Values

Browse 20 reference values with individual detail pages for quick lookup.

Browse all reference values

Radius to Diameter

Convert radius to diameter with the basic relationship d = 2r.

Calculated Result

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Reference Table

Use this complete table for quick lookup and internal linking to specific value pages.

Radius to Diameter Reference
RadiusDiameter
1 units2 units
2 units4 units
3 units6 units
4 units8 units
5 units10 units
6 units12 units
7 units14 units
8 units16 units
9 units18 units
10 units20 units
11 units22 units
12 units24 units
13 units26 units
14 units28 units
15 units30 units
16 units32 units
17 units34 units
18 units36 units
19 units38 units
20 units40 units

Frequently Asked Questions

Common questions about Radius to Diameter, formulas, and typical use cases.

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

This page combines a live calculator, precomputed reference values, and FAQ content from the same conversion definition to reduce mismatch between calculator output and lookup tables.

Editorial metadata (author, reviewer, and update date) is rendered on the page and in structured data. See our editorial policy, review process, and corrections policy.

For compliance-sensitive work, verify final values against project requirements, governing standards, and manufacturer documentation.