Square Side from Diagonal Reference Values

Calculate square side length from diagonal using side = diagonal / √2.

Author

Dr. Nadia Petrov

Math editorial contributor

Serbian biomedical engineer trained at Imperial College London, developing low-cost prosthetics for conflict zones

Reviewed for accuracy by

Dr. Emeka Nwosu

Math content reviewer

Nigerian legal scholar with an SJD from Yale, focused on international trade law and African continental free trade agreements

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 20 reference values for quick browsing and lookup.

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All Reference Values

Reference Table

Square Side from Diagonal reference values
DiagonalSide Length
1 units0.707107 units
2 units1.414214 units
3 units2.12132 units
5 units3.535534 units
7.07 units4.999245 units
10 units7.071068 units
14.14 units9.99849 units
20 units14.142136 units
28.28 units19.99698 units
40 units28.284271 units
50 units35.355339 units
70.71 units49.99952 units
100 units70.710678 units
141.42 units99.999041 units
200 units141.421356 units
282.84 units199.998082 units
400 units282.842712 units
500 units353.553391 units
707.11 units500.002276 units
1,000 units707.106781 units

Frequently Asked Questions

Frequently asked questions for Square Side from Diagonal and its reference values.

What does the Square Side from Diagonal calculator do?

It helps with finding square side dimensions from corner-to-corner measurements.

What formula does the Square Side from Diagonal calculator use?

Square side length = diagonal / √2.

What inputs are valid?

Diagonal should be zero or greater. Physical diagonals are positive.

When would I use this?

finding square side dimensions from corner-to-corner 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.