CODATA fundamental physical constants

CODATA 2022 recommended values of the fundamental physical constants, published by NIST (a US government work). One document per constant citing the NIST complete listing; refreshed on each CODATA release, roughly every four years.

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Documents

Showing 337–355 of 355 documents

Document	Version
triton mag. mom. to Bohr magneton ratio triton mag. mom. to Bohr magneton ratio = 1.622 393 6648 × 10⁻³ (CODATA 2022 recommended value, NIST)	v2
triton mag. mom. to nuclear magneton ratio triton mag. mom. to nuclear magneton ratio = 2.978 962 4650 (CODATA 2022 recommended value, NIST)	v2
triton mass triton mass = 5.007 356 7512 × 10⁻²⁷ kg (CODATA 2022 recommended value, NIST)	v1
triton mass energy equivalent triton mass energy equivalent = 4.500 387 8119 × 10⁻¹⁰ J (CODATA 2022 recommended value, NIST)	v1
triton mass energy equivalent in MeV triton mass energy equivalent in MeV = 2808.921 136 68 MeV (CODATA 2022 recommended value, NIST)	v1
triton mass in u triton mass in u = 3.015 500 715 97 u (CODATA 2022 recommended value, NIST)	v1
triton molar mass triton molar mass = 3.015 500 719 13 × 10⁻³ kg mol⁻¹ (CODATA 2022 recommended value, NIST)	v1
triton relative atomic mass triton relative atomic mass = 3.015 500 715 97 (CODATA 2022 recommended value, NIST)	v1
triton to proton mag. mom. ratio triton to proton mag. mom. ratio = 1.066 639 9189 (CODATA 2022 recommended value, NIST)	v2
triton-electron mass ratio triton-electron mass ratio = 5496.921 535 51 (CODATA 2022 recommended value, NIST)	v1
triton-proton mass ratio triton-proton mass ratio = 2.993 717 034 03 (CODATA 2022 recommended value, NIST)	v1
unified atomic mass unit unified atomic mass unit = 1.660 539 068 92 × 10⁻²⁷ kg (CODATA 2022 recommended value, NIST)	v2
vacuum electric permittivity vacuum electric permittivity = 8.854 187 8188 × 10⁻¹² F m⁻¹ (CODATA 2022 recommended value, NIST)	v2
vacuum mag. permeability vacuum mag. permeability = 1.256 637 061 27 × 10⁻⁶ N A⁻² (CODATA 2022 recommended value, NIST)	v2
von Klitzing constant von Klitzing constant = 25 812.807 45… ohm (CODATA 2022 recommended value, NIST)	v2
W to Z mass ratio W to Z mass ratio = 0.881 45 (CODATA 2022 recommended value, NIST)	v1
weak mixing angle weak mixing angle = 0.223 05 (CODATA 2022 recommended value, NIST)	v2
Wien frequency displacement law constant Wien frequency displacement law constant = 5.878 925 757… × 10¹⁰ Hz K⁻¹ (CODATA 2022 recommended value, NIST)	v1
Wien wavelength displacement law constant Wien wavelength displacement law constant = 2.897 771 955… × 10⁻³ m K (CODATA 2022 recommended value, NIST)	v2

Source, review, and usage

Published on Koskamo by: Koskamo
Version: 468
Documents: 355 documents
Reviewed: 2026-10-03
Last approved change: 2026-10-04
Agent lookups: 71 in the last 90 days
Reuse: CODATA 2022 recommended values from NIST, a work of the US government (public domain in the United States)
Review status: Published by Koskamo; proposed revisions require Koskamo approval

Original sources are linked on each document. Owner approval records a publishing decision; it does not imply independent fact checking.

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Change history

Every change that reached this dataset. Proposals from contributors land only after Koskamo approves them.

Approved revision2026-10-04
Wien wavelength displacement law constant · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
weak mixing angle · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
von Klitzing constant · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
vacuum mag. permeability · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
vacuum electric permittivity · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
unified atomic mass unit · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
triton to proton mag. mom. ratio · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
triton mag. mom. to nuclear magneton ratio · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
triton mag. mom. to Bohr magneton ratio · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Approved revision2026-10-04
triton mag. mom. · v2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.