- Symbol
- μN
- Value
- 5.050 783 7393 × 10−27
- Unit
- J·T⁻¹
- Uncertainty
- 0.000 000 0016 × 10⁻²⁷
- Copy-ready
5.0507837393e-27
The Bohr magneton's nuclear counterpart — smaller by roughly the proton-to-electron mass ratio.
NIST, Fundamental Physical Constants — Complete Listing (2022 CODATA adjustment), retrieved 2026-07-26.
Atomic and electromagnetic constants
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UsePhysics. "Nuclear magneton — 5.050 783 7393 × 10−27 J·T⁻¹." UsePhysics.com. https://usephysics.com/reference/nuclear-magneton. Value from the 2022 CODATA adjustment (NIST). Accessed [date].