Dalton to Petagram
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34 units available
6 categories total
How to Convert Dalton to Petagram
To convert Da to kg: multiply by 1.6605390666 × 10⁻²⁷. 1 kDa = 1,000 Da.
1 Da = 1 u = 1.6605390666 × 10⁻²⁷ kg. Proteins range from ~5 kDa to >1,000 kDa.
For example, 1 Dalton (Da) = 1.660539e-39 Petagram (Pg).
Dalton to Petagram — Common Values
| Dalton (Da) | Petagram (Pg) |
|---|---|
| 0.1 | 1.660539e-40 |
| 0.5 | 8.302695e-40 |
| 1 | 1.660539e-39 |
| 2 | 3.321078e-39 |
| 5 | 8.302695e-39 |
| 10 | 1.660539e-38 |
| 25 | 4.151348e-38 |
| 50 | 8.302695e-38 |
| 100 | 1.660539e-37 |
| 500 | 8.302695e-37 |
| 1000 | 1.660539e-36 |
About Dalton (Da)
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.
