Since ##c=1## we have ##[l]=[t]##,(adsbygoogle = window.adsbygoogle || []).push({});

##\hbar=1## and from Einstein law ##E=\hbar\omega\rightarrow [E]=[t^{-1}]##,

##G=1\rightarrow [E]=[m]^2[t^{-1}]##

then we must have ##[m]=1## but since ##E=mc^2\rightarrow [E]=[t]^2##

Can someone please point out my mistake

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# I Problem with Planck units

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