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Boltzmann constant

Physical constant relating energy with temperature and other intensive physical quantities
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Summary

Boltzmann constant is a physical constant[1]. It draws 12,000 Wikipedia views per month (physical constant category, ranking #5 of 43).[2]

Key Facts

  • Instance of: UCUM constant[3], entropy[4]
  • Measured physical quantity: entropy[5]
  • Named after: Ludwig Boltzmann[6]
  • Numeric value: 0.00000000000000000000001380649 joule per kelvin[7]
  • Different from: Stefan-Boltzmann constant[8], Boltzmann number[9]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[10]

Why It Matters

Boltzmann constant has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[11] It is known by 28 alternative names across languages and contexts.[12]

Related Entities

Ludwig Boltzmann

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] ↑ . 2018 CODATA recommended values. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [11] ↑ . Wikidata sitelinks. wikidata.org.
  3. [12] ↑ . 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). Boltzmann constant. Retrieved October 15, 2026, from https://4ort.xyz/entity/boltzmann-constant
MLA “Boltzmann constant.” 4ort.xyz Knowledge Graph, 4ort.xyz, 15 Oct. 2026, https://4ort.xyz/entity/boltzmann-constant.
BibTeX @misc{4ortxyz_boltzmann-constant_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Boltzmann constant}}, year = {2026}, url = {https://4ort.xyz/entity/boltzmann-constant}, note = {Accessed: 2026-10-15}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Boltzmann constant — https://4ort.xyz/entity/boltzmann-constant (retrieved 2026-10-15)

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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. 13w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    Named after → Ludwig Boltzmann
    Measured physical quantity → entropy
    Different from → Stefan-Boltzmann constant, Boltzmann number
    Named after → —
    + 6 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
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