Avogadro constant = 6.022 140 76 × 1023 mol⁻¹
- Symbol
- NA
- Value
- 6.022 140 76 × 1023
- Unit
- mol⁻¹
- Uncertainty
- exact (by definition)
- Copy-ready
6.02214076e23
Defines the mole: exactly this many entities.
NIST, Fundamental Physical Constants — Complete Listing (2022 CODATA adjustment), retrieved 2026-07-26.
The seven SI defining constants
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UsePhysics. "Avogadro constant — 6.022 140 76 × 1023 mol⁻¹." UsePhysics.com. https://usephysics.com/reference/avogadro-constant. Value from the 2022 CODATA adjustment (NIST). Accessed [date].