Input interpretation
lanthanum | atomic mass
Result
138.90547 u (unified atomic mass units)
Unit conversions
138.90547 Da (daltons)
0.13890547 kDa (kilodaltons)
2.3065796×10^-22 grams
2.3065796×10^-25 kg (kilograms)
138.9114 chemical atomic mass units (unit officially deprecated)
138.94963 physical atomic mass units (unit officially deprecated)
Corresponding quantities
Relative atomic mass A_r from A_r = m_aN_A/M_u: | 139
Molar mass M from M = m_aN_A: | 139 g/mol (grams per mole)