Abstract: Within the Everlasting Theory I calculated the charge radius of proton for experiment involving a proton and an electron 0.87673 fm. For experiment involving a proton and a negatively-charged muon, the upper limit is 0.84282 fm whereas the arithmetic mean is 0.84074 fm. The first result overlaps with the central value obtained in experiment (!) whereas the second is consistent with experimental data. The different experimental results lead to the atom-like structure of protons. 1.