Instant · Precise · Universal
34 units available
6 categories total
To convert carats to grams: multiply by 0.2. To convert grams to carats: multiply by 5.
1 ct = 0.2 g = 200 mg = 0.007055 oz.
For example, 1 Carat (ct) = 1.204428e+23 Dalton (Da).
| Carat (ct) | Dalton (Da) |
|---|---|
| 0.1 | 1.204428e+22 |
| 0.5 | 6.022141e+22 |
| 1 | 1.204428e+23 |
| 2 | 2.408856e+23 |
| 5 | 6.022141e+23 |
| 10 | 1.204428e+24 |
| 25 | 3.011070e+24 |
| 50 | 6.022141e+24 |
| 100 | 1.204428e+25 |
| 500 | 6.022141e+25 |
| 1000 | 1.204428e+26 |
The carat is a unit of mass used for gemstones and pearls, equal to exactly 200 milligrams (0.2 grams).
1 ct = 0.2 g = 200 mg = 0.007055 oz.
To convert carats to grams: multiply by 0.2. To convert grams to carats: multiply by 5.
Diamond grading and pricing, gemstone trade, pearl classification, and jewelry appraisal.
The Hope Diamond weighs 45.52 ct (9.1 g). The Cullinan Diamond, the largest gem-quality rough diamond ever found, was 3,106 ct (621 g).
Confusing carat (ct, mass) with karat (K, gold purity). 24K gold is pure gold; a 24-carat diamond weighs 4.8 g.
Carat = weight of a gem. Karat = purity of gold. They sound the same but measure completely different things.
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.



© 2026 UntangleTools. All Rights Reserved.