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Planck length

very small-scale unit of length
Intangible unit_of_length Q207387
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Planck length

Summary

Planck length is an unit of length[1]. It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Planck length's instance of is recorded as unit of length[3].
  • Planck length's instance of is recorded as physical constant[4].
  • Planck length's instance of is recorded as Planck units[5].
  • Planck length's measured physical quantity is recorded as length[6].
  • Max Planck is named after Planck length[7].
  • Planck length is a type of natural units[8].
  • Planck length is part of Planck units[9].
  • Planck length's numeric value is recorded as {'unit': 'Q11573', 'amount': '+0.00000000000000000000000000000000001616255'}[10].
  • Planck length's conversion to SI unit is recorded as {'unit': 'Q11573', 'amount': '+0.00000000000000000000000000000000001616255'}[11].
  • Planck length's Wikidata SPARQL query equivalent is recorded as wd:Q207387 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)[12].
  • Planck length's maintained by WikiProject is recorded as WikiProject Mathematics[13].

Body

Definition and Type

Recorded instance of include unit of length[3], physical constant[4], and Planck units[5]. Planck length is a type of natural units[8].

Origins

Max Planck is named after Planck length[7].

Use and Application

Planck length is part of Planck units[9].

Why It Matters

Planck length has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[2] It is known by 16 alternative names across languages and contexts.[14]

Related Entities

Max Planck

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . 2018 CODATA recommended values. wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [14] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Planck length. Retrieved May 3, 2026, from https://4ort.xyz/entity/planck-length
MLA “Planck length.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/planck-length.
BibTeX @misc{4ortxyz_planck-length_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Planck length}}, year = {2026}, url = {https://4ort.xyz/entity/planck-length}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Planck length — https://4ort.xyz/entity/planck-length (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 3d ago · Shinaimm · 2026-07-02 view diff on Wikidata ↗
    Start time → +1899-00-00T00:00:00Z
    Named after → —
    Measured physical quantity → length
    Subclass of → —
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P580]]: 1899"
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