~= 26131952590 TeV 563 GeV 766 MeV 479 keV 492 eV 1/5 eV
1 kcal = 26131952590.564 TeV
1 TeV = 3.8267327959301E-11 kcal
https://www.unitjuggler.com/convert-energy-from-kcal-to-TeV.html