CODATA Recommended Values of the Fundamental Physical Constants: 2014

This document gives the 2014 self-consistent set of values of the constants and conversion factors of physics and chemistry recommended by the Committee on Data for Science and Technology (CODATA). These values are based on a least-squares adjustment that takes into account all data available up to 31 December 2014. The recommended values may also be found at http://physics.nist.gov/cuu/Constants/index.html