Mearth\text{Mearth}

Earth mass

Mass

The Earth mass is about 5.9722 × 10²⁴ kilograms. It is a measured quantity, not an exact one, and its precision is limited by the gravitational constant: the product GM⊕ is known to about nine significant figures, while G itself is known to only five, so the mass inherits that.

Watch out: Astronomy generally avoids this problem by working in GM rather than M, which is why orbital mechanics is done with the standard gravitational parameter. Any planetary mass in kilograms is a division by a poorly known G and carries the uncertainty to prove it.

1 Mearth\text{Mearth} 5.9722000e+24 kg\text{kg}

One earth mass in every mass unit

3.59654e+51unified atomic mass unit (dalton) (u)
5.97220e+39picogram (pg)
5.97220e+36nanogram (ng)
5.97220e+33microgram (μg)
5.97220e+30milligram (mg)
5.97220e+29centigram (cg)
9.21651e+28grain (gr)
2.98610e+28metric carat (ct)
5.97220e+27gram (g)
3.84021e+27pennyweight (dwt)
3.37061e+27dram (dr)
2.10663e+26ounce (oz)
1.92011e+26troy ounce (oz t)
1.60009e+25troy pound (lb t)
1.31664e+25pound (lb)
5.97220e+24kilogram (kg)
9.40461e+23stone (st)
4.09226e+23slug (slug)
1.31664e+23US hundredweight (cwt)
1.17558e+23UK long hundredweight (cwt (UK))
5.97220e+22quintal (q)
6.58322e+21US short ton (ton)
5.97220e+21metric tonne (t)
5.87788e+21UK long ton (long ton)
5.97220e+18kilotonne (kt)
5.97220e+15megatonne (Mt)
5,972,200,000,000gigatonne (Gt)
1Earth mass (Mearth)this unit
0.00000300351solar mass (Msun)