Instant · Precise · Universal
34 units available
6 categories total
To convert ounces to grams: multiply by 28.3495. To convert grams to ounces: divide by 28.3495.
1 oz = 28.349523125 g = 1/16 lb = 437.5 grains.
For example, 1 Ounce (oz) = 1.707248e+25 Dalton (Da).
| Ounce (oz) | Dalton (Da) |
|---|---|
| 0.1 | 1.707248e+24 |
| 0.5 | 8.536241e+24 |
| 1 | 1.707248e+25 |
| 2 | 3.414496e+25 |
| 5 | 8.536241e+25 |
| 10 | 1.707248e+26 |
| 25 | 4.268120e+26 |
| 50 | 8.536241e+26 |
| 100 | 1.707248e+27 |
| 500 | 8.536241e+27 |
| 1000 | 1.707248e+28 |
The ounce (avoirdupois) is an imperial unit of mass equal to 1/16 of a pound or approximately 28.35 grams.
1 oz = 28.349523125 g = 1/16 lb = 437.5 grains.
To convert ounces to grams: multiply by 28.3495. To convert grams to ounces: divide by 28.3495.
Food packaging (cereal boxes, cheese), postal weights, baby weight tracking (lb and oz), and cooking.
There are two different ounces: the avoirdupois ounce (28.35 g) for general use and the troy ounce (31.1 g) for precious metals. Gold is always measured in troy ounces.
Confusing avoirdupois ounces (28.35 g) with troy ounces (31.1 g). Also confusing oz (mass) with fl oz (volume).
There are 16 oz in a pound. A quick gram conversion: 1 oz ≈ 30 g (for estimation).
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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