As at March 2011, the International Avogadro Coordination (IAC) group had obtained an uncertainty of 6992300000000000000♠3.0×10−8 and NIST had obtained an uncertainty of 6992360000000000000♠3.6×10−8 in their measurements.
Pada Maret 2011, kelompok Koordinasi Avogadro Internasional (IAC) telah memperoleh ketidakpastian 6992300000000000000♠3.0×10−8 dan NIST mendapat ketidakpastian sebesar 6992360000000000000♠3.6×10−8 dalam pengukuran mereka.