basic

Nuclear Binding Energy & Mass Defect Calculator

E = Δm·c² — energy from mass defect in a nucleus.

Calculates nuclear mass defect and binding energy (total and per nucleon) from proton/neutron counts and actual nuclear mass.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Δm = Z×m_p + N×m_n − m_nucleus; BE = Δm × 931.5 MeV/u

In depth

Calculates nuclear mass defect and binding energy (total and per nucleon) from proton/neutron counts and actual nuclear mass.