gyromagnetic-ratio Reference values for gyromagnetic ratio in $rad \over Ts $ extracted from: NMR nomenclature. Nuclear spin properties and conventions for chemical shifts(IUPAC Recommendations 2001). Installation $ npm i gyromagnetic-ratio Usage import { gyromagneticRatio } from 'gyromagnetic-ratio'; const proton = gyromagneticRatio['1H']; console.log(proton); // 267522187.44 License MIT