Input interpretation
helium | atomic mass
Result
4.002602 u (unified atomic mass units)
Unit conversions
4.002602 Da (daltons)
6.646477×10^-24 grams
6.646477×10^-27 kg (kilograms)
4.002774 chemical atomic mass units (unit officially deprecated)
4.003874 physical atomic mass units (unit officially deprecated)
Corresponding quantities
Relative atomic mass A_r from A_r = m_aN_A/M_u: | 4
Molar mass M from M = m_aN_A: | 4 g/mol (grams per mole)