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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) = 200000000000 Picogram (pg).
| Carat (ct) | Picogram (pg) |
|---|---|
| 0.1 | 20000000000 |
| 0.5 | 100000000000 |
| 1 | 200000000000 |
| 2 | 400000000000 |
| 5 | 1.000000e+12 |
| 10 | 2.000000e+12 |
| 25 | 5.000000e+12 |
| 50 | 1.000000e+13 |
| 100 | 2.000000e+13 |
| 500 | 1.000000e+14 |
| 1000 | 2.000000e+14 |
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 picogram is a unit of mass equal to 10⁻¹² grams or 10⁻¹⁵ kilograms — one trillionth of a gram.
1 pg = 10⁻¹² g = 10⁻¹⁵ kg = 1,000 fg. A human cell contains about 6 pg of DNA.
To convert pg to grams: multiply by 10⁻¹². To convert pg to ng: divide by 1,000.
Quantifying DNA in cells (~6 pg per human cell), measuring blood hormone levels, and forensic trace analysis.
The total DNA in a single human cell weighs about 6.4 pg — this tiny amount contains your entire genetic blueprint.
Confusing pg (picogram) with pg as an abbreviation for 'page'. Context matters in mixed documents.
Remember: each human cell has ~6 pg of DNA. This anchors the picogram in biology.



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