Instant · Precise · Universal
34 units available
6 categories total
To convert Earth masses to kg: multiply by 5.9722 × 10²⁴.
M⊕ = 5.9722 × 10²⁴ kg ≈ 5.972 Yg (yottagrams). Earth = 1 M⊕ by definition.
For example, 1 Earth's Mass (M⊕) = 3.596543e+51 Dalton (Da).
| Earth's Mass (M⊕) | Dalton (Da) |
|---|---|
| 0.1 | 3.596543e+50 |
| 0.5 | 1.798271e+51 |
| 1 | 3.596543e+51 |
| 2 | 7.193086e+51 |
| 5 | 1.798271e+52 |
| 10 | 3.596543e+52 |
| 25 | 8.991357e+52 |
| 50 | 1.798271e+53 |
| 100 | 3.596543e+53 |
| 500 | 1.798271e+54 |
| 1000 | 3.596543e+54 |
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.
The dalton is a unit of mass equal to one unified atomic mass unit (1/12 of a carbon-12 atom), approximately 1.661 × 10⁻²⁷ kg.
1 Da = 1 u = 1.6605390666 × 10⁻²⁷ kg. Proteins range from ~5 kDa to >1,000 kDa.
To convert Da to kg: multiply by 1.6605390666 × 10⁻²⁷. 1 kDa = 1,000 Da.
Protein molecular weights (hemoglobin ≈ 64.5 kDa), DNA fragment sizing, and antibody characterization.
Titin, the largest known protein, has a molecular weight of about 3,800 kDa (3.8 MDa). The average protein is ~40–50 kDa.
The dalton and u are identical — they're just preferred in different fields (Da in biology, u in chemistry/physics).
If a paper says a protein is '50 kDa,' that's 50,000 atomic mass units — about 50,000 hydrogen atoms' worth of mass.



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