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 73–96 of 355 documents

Document	Version
deuteron mass deuteron mass = 3.343 583 7768 × 10⁻²⁷ kg (CODATA 2022 recommended value, NIST)	v1
deuteron mass energy equivalent deuteron mass energy equivalent = 3.005 063 234 91 × 10⁻¹⁰ J (CODATA 2022 recommended value, NIST)	v1
deuteron mass energy equivalent in MeV deuteron mass energy equivalent in MeV = 1875.612 945 00 MeV (CODATA 2022 recommended value, NIST)	v1
deuteron mass in u deuteron mass in u = 2.013 553 212 544 u (CODATA 2022 recommended value, NIST)	v1
deuteron molar mass deuteron molar mass = 2.013 553 214 66 × 10⁻³ kg mol⁻¹ (CODATA 2022 recommended value, NIST)	v1
deuteron relative atomic mass deuteron relative atomic mass = 2.013 553 212 544 (CODATA 2022 recommended value, NIST)	v1
deuteron rms charge radius deuteron rms charge radius = 2.127 78 × 10⁻¹⁵ m (CODATA 2022 recommended value, NIST)	v1
deuteron-electron mag. mom. ratio deuteron-electron mag. mom. ratio = -4.664 345 550 × 10⁻⁴ (CODATA 2022 recommended value, NIST)	v2
deuteron-electron mass ratio deuteron-electron mass ratio = 3670.482 967 655 (CODATA 2022 recommended value, NIST)	v1
deuteron-neutron mag. mom. ratio deuteron-neutron mag. mom. ratio = -0.448 206 52 (CODATA 2022 recommended value, NIST)	v2
deuteron-proton mag. mom. ratio deuteron-proton mag. mom. ratio = 0.307 012 209 30 (CODATA 2022 recommended value, NIST)	v2
deuteron-proton mass ratio deuteron-proton mass ratio = 1.999 007 501 2699 (CODATA 2022 recommended value, NIST)	v1
electron charge to mass quotient electron charge to mass quotient = -1.758 820 008 38 × 10¹¹ C kg⁻¹ (CODATA 2022 recommended value, NIST)	v2
electron g factor electron g factor = -2.002 319 304 360 92 (CODATA 2022 recommended value, NIST)	v2
electron gyromag. ratio electron gyromag. ratio = 1.760 859 627 84 × 10¹¹ s⁻¹ T⁻¹ (CODATA 2022 recommended value, NIST)	v2
electron gyromag. ratio in MHz/T electron gyromag. ratio in MHz/T = 28 024.951 3861 MHz T⁻¹ (CODATA 2022 recommended value, NIST)	v2
electron mag. mom. electron mag. mom. = -9.284 764 6917 × 10⁻²⁴ J T⁻¹ (CODATA 2022 recommended value, NIST)	v2
electron mag. mom. anomaly electron mag. mom. anomaly = 1.159 652 180 46 × 10⁻³ (CODATA 2022 recommended value, NIST)	v2
electron mag. mom. to Bohr magneton ratio electron mag. mom. to Bohr magneton ratio = -1.001 159 652 180 46 (CODATA 2022 recommended value, NIST)	v2
electron mag. mom. to nuclear magneton ratio electron mag. mom. to nuclear magneton ratio = -1838.281 971 877 (CODATA 2022 recommended value, NIST)	v2
electron mass electron mass = 9.109 383 7139 × 10⁻³¹ kg (CODATA 2022 recommended value, NIST)	v2
electron mass energy equivalent electron mass energy equivalent = 8.187 105 7880 × 10⁻¹⁴ J (CODATA 2022 recommended value, NIST)	v1
electron mass energy equivalent in MeV electron mass energy equivalent in MeV = 0.510 998 950 69 MeV (CODATA 2022 recommended value, NIST)	v1
electron mass in u electron mass in u = 5.485 799 090 441 × 10⁻⁴ u (CODATA 2022 recommended value, NIST)	v1

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.