---
title: "List of scientific constants named after people"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/List_of_scientific_constants_named_after_people"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T03:28:21.261962+00:00"
instance: "kb-cron"
---

This is a list of physical and mathematical constants named after people.
Eponymous constants and their influence on scientific citations have been discussed in the literature.

Apéry's constant – Roger Apéry
Archimedes' constant (π, pi) – Archimedes
Avogadro constant – Amedeo Avogadro
Balmer's constant – Johann Jakob Balmer
Belphegor's prime – Belphegor (demon)
Bohr magneton – Niels Bohr
Bohr radius – Niels Bohr
Boltzmann constant – Ludwig Boltzmann
Brun's constant – Viggo Brun
Cabibbo angle – Nicola Cabibbo
Chaitin's constant – Gregory Chaitin
Champernowne constant – D. G. Champernowne
Chandrasekhar limit – Subrahmanyan Chandrasekhar
Copeland–Erdős constant – Paul Erdős and Peter Borwein
Eddington number – Arthur Stanley Eddington
Dunbar's number – Robin Dunbar
Embree–Trefethen constant
Erdős–Borwein constant
Euler–Mascheroni constant (
  
    
      
        γ
      
    
    {\displaystyle \gamma }
  
) – Leonhard Euler and Lorenzo Mascheroni
Euler's number (
  
    
      
        e
      
    
    {\displaystyle e}
  
) – Leonhard Euler
Faraday constant – Michael Faraday
Feigenbaum constants – Mitchell Feigenbaum
Fermi coupling constant – Enrico Fermi
Gauss's constant – Carl Friedrich Gauss
Graham's number – Ronald Graham
Hartree energy – Douglas Hartree
Hubble constant – Edwin Hubble
Josephson constant – Brian David Josephson
Kaprekar's constant – D. R. Kaprekar
Kerr constant – John Kerr
Khinchin's constant – Aleksandr Khinchin
Landau–Ramanujan constant – Edmund Landau and Srinivasa Ramanujan
Legendre's constant (one, 1) – Adrien-Marie Legendre
Loschmidt constant – Johann Josef Loschmidt
Ludolphsche Zahl – Ludolph van Ceulen
Mean of Phidias (golden ratio, 
  
    
      
        ϕ
      
    
    {\displaystyle \phi }
  
, phi) – Phidias
Meissel–Mertens constant
Moser's number
Newtonian constant of gravitation (gravitational constant, 
  
    
      
        G
      
    
    {\displaystyle G}
  
) – Sir Isaac Newton
Planck constant (
  
    
      
        h
      
    
    {\displaystyle h}
  
) – Max Planck
Reduced Planck constant or Dirac constant (
  
    
      
        h
      
    
    {\displaystyle h}
  
-bar, ħ) – Max Planck, Paul Dirac
Ramanujan–Soldner constant – Srinivasa Ramanujan and Johann Georg von Soldner
Richardson constant – Owen Willans Richardson
Rayo's number – Agustin Rayo
Rydberg constant – Johannes Rydberg
Sommerfeld constant – Arnold Sommerfeld
Sagan's number – Carl Sagan
Sackur–Tetrode constant – Otto Sackur and Hugo Tetrode
Sierpiński's constant – Wacław Sierpiński
Skewes' number – Stanley Skewes
Stefan–Boltzmann constant – Jožef Stefan and Ludwig Boltzmann
Theodorus' constant (√3 ≅ ±1.732050807568877...) – Theodorus of Cyrene
Tupper's number – Jeff Tupper
Viswanath's constant – Divakar Viswanath
von Klitzing constant – Klaus von Klitzing
Wien displacement law constant – Wilhelm Wien


== See also ==
List of eponymous laws, for a list of laws named after people
List of scientific laws named after people
List of scientists whose names are used in physical constants


== Notes and references ==