Fundamental Physical Constants from NIST (original) (raw)

Find the correlation coefficient between any pair of constants

See also

Wall Chart and Wallet Card of the 2022 constants

Background information related to the constants

Links to selected scientific data

Previous Values (2018) (2014) (2010) (2006) (2002) (1998) (1986) (1973) (1969)

DEADLINE NOTICE

The 2026 CODATA adjustment of the fundamental constants is the next regularly scheduled adjustment. Data being used in this adjustment is required to have been discussed in a publication preprint or a publication prior to 31 December 2026.