Atomic Mass Calculator

Atomic Mass Calculator

Number of protons (Z):

Number of neutrons (N):

Atomic mass: nanograms (ng) electron rest masses (me) proton rest masses (mp) neutron rest masses (mn) atomic mass units (u)

Atomic mass (SI) : ×10⁻²⁸ kg ×10⁻²⁷ kg ×10⁻²⁶ kg ×10⁻²⁵ kg

Atomic Mass Calculation