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Rectangle Perimeter Calculator Reference Values

Calculate rectangle perimeter from length and width using P = 2(l + w).

Author

Dr. Isabella Rossi

Math editorial contributor

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

Reviewed for accuracy by

Dr. Samuel Okafor

Math content reviewer

Nigerian-Canadian data scientist with a PhD from the University of Toronto, building ML models for early cancer detection

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. All value pages
  2. Reference table
  3. FAQs
  4. Methodology and review
  5. Related conversions

Reference Value Index

This page lists 25 reference values for quick browsing and lookup.

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All Reference Values

Reference Table

Rectangle Perimeter Calculator reference values
ScenarioRectangle Perimeter
1 units Length; 1 units Width4 units
1 units Length; 3 units Width8 units
1 units Length; 6 units Width14 units
1 units Length; 12 units Width26 units
1 units Length; 24 units Width50 units
2 units Length; 1 units Width6 units
2 units Length; 3 units Width10 units
2 units Length; 6 units Width16 units
2 units Length; 12 units Width28 units
2 units Length; 24 units Width52 units
5 units Length; 1 units Width12 units
5 units Length; 3 units Width16 units
5 units Length; 6 units Width22 units
5 units Length; 12 units Width34 units
5 units Length; 24 units Width58 units
10 units Length; 1 units Width22 units
10 units Length; 3 units Width26 units
10 units Length; 6 units Width32 units
10 units Length; 12 units Width44 units
10 units Length; 24 units Width68 units
20 units Length; 1 units Width42 units
20 units Length; 3 units Width46 units
20 units Length; 6 units Width52 units
20 units Length; 12 units Width64 units
20 units Length; 24 units Width88 units

Frequently Asked Questions

Frequently asked questions for Rectangle Perimeter Calculator and its reference values.

What does the Rectangle Perimeter Calculator calculator do?

It helps with estimating border length, trim, fencing, and perimeter measurements.

What formula does the Rectangle Perimeter Calculator calculator use?

Rectangle perimeter = 2 × (length + width).

What inputs are valid?

Length and width should be zero or greater. Physical dimensions are typically positive.

When would I use this?

estimating border length, trim, fencing, and perimeter measurements

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.