Petagram to Earth's Mass
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How to Convert Petagram to Earth's Mass
For example, 1 Petagram (Pg) = 1.674425e-13 Earth's Mass (M⊕).
Petagram to Earth's Mass — Common Values
| Petagram (Pg) | Earth's Mass (M⊕) |
|---|---|
| 0.1 | 1.674425e-14 |
| 0.5 | 8.372124e-14 |
| 1 | 1.674425e-13 |
| 2 | 3.348850e-13 |
| 5 | 8.372124e-13 |
| 10 | 1.674425e-12 |
| 25 | 4.186062e-12 |
| 50 | 8.372124e-12 |
| 100 | 1.674425e-11 |
| 500 | 8.372124e-11 |
| 1000 | 1.674425e-10 |
About Earth's Mass (M⊕)
The Earth mass is the mass of planet Earth, approximately 5.972 × 10²⁴ kilograms.
M⊕ = 5.9722 × 10²⁴ kg ≈ 5.972 Yg (yottagrams). Earth = 1 M⊕ by definition.
To convert Earth masses to kg: multiply by 5.9722 × 10²⁴.
Expressing exoplanet masses (e.g., 'a planet of 3 Earth masses'), moon masses, and asteroid masses.
Earth gains about 40,000 tonnes of mass per year from cosmic dust — but that's only 10⁻¹⁷ of its total mass.
Earth's mass is hard to visualize. The key insight: it's known from G × M⊕ (the gravitational parameter), not M⊕ alone.
Cavendish 'weighed the Earth' by measuring G. If you know g (9.8 m/s²) and Earth's radius, you can calculate M⊕ = gR²/G.
