Earth mass ( M E or M ⊕, where ⊕ is the standard astronomical symbol for planet Earth ) is the unit of mass equal to that of Earth. The current best estimate for Earth mass is M ⊕ =5.9722×1024 kg, with a standard uncertainty of6×1020 kg (relative uncertainty 10−4). It is equivalent to an average density of 5515 kg⋅m−3.
1 M⊕ in: is equal to SI base unit: (5.9722±0.0006)×1024 kg
Unit system: astronomy Symbol: M⊕