- Symbol
- R∞
- Value
- 10 973 731.568 157
- Unit
- m⁻¹
- Uncertainty
- 0.000 012
- Copy-ready
10973731.568157
Fixes the wavelengths of the hydrogen spectral lines; one of the most precisely measured constants in physics.
NIST, Fundamental Physical Constants — Complete Listing (2022 CODATA adjustment), retrieved 2026-07-26.
Atomic and electromagnetic constants
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UsePhysics. "Rydberg constant — 10 973 731.568 157 m⁻¹." UsePhysics.com. https://usephysics.com/reference/rydberg-constant. Value from the 2022 CODATA adjustment (NIST). Accessed [date].