Carat to Teragram Converter
Unit Converter
Instant · Precise · Universal
34 units available
6 categories total
How to Convert Carat to Teragram
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) = 2.000000e-13 Teragram (Tg).
Carat to Teragram — Common Values
| Carat (ct) | Teragram (Tg) |
|---|---|
| 0.1 | 2.000000e-14 |
| 0.5 | 1.000000e-13 |
| 1 | 2.000000e-13 |
| 2 | 4.000000e-13 |
| 5 | 1.000000e-12 |
| 10 | 2.000000e-12 |
| 25 | 5.000000e-12 |
| 50 | 1.000000e-11 |
| 100 | 2.000000e-11 |
| 500 | 1.000000e-10 |
| 1000 | 2.000000e-10 |
About Carat (ct)
Definition
The carat is a unit of mass used for gemstones and pearls, equal to exactly 200 milligrams (0.2 grams).
Mathematical Relationship
1 ct = 0.2 g = 200 mg = 0.007055 oz.
Conversion Formula
To convert carats to grams: multiply by 0.2. To convert grams to carats: multiply by 5.
Practical Applications
Diamond grading and pricing, gemstone trade, pearl classification, and jewelry appraisal.
Interesting Facts
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).
Common Mistakes
Confusing carat (ct, mass) with karat (K, gold purity). 24K gold is pure gold; a 24-carat diamond weighs 4.8 g.
Educational Tips
Carat = weight of a gem. Karat = purity of gold. They sound the same but measure completely different things.
About Teragram (Tg)
Definition
The teragram equals 10¹² grams or one million tonnes (one megatonne).
Mathematical Relationship
1 Tg = 10¹² g = 10⁹ kg = 10⁶ tonnes = 1 megatonne.
Conversion Formula
To convert Tg to tonnes: multiply by 10⁶. To convert Tg to Gg: multiply by 1,000.
Practical Applications
Global carbon budgets (~10,000 Tg C/year from fossil fuels), volcanic eruption plume masses.
Interesting Facts
Earth's atmosphere has a total mass of about 5.15 × 10⁶ Tg (5.15 × 10¹⁸ kg).
Common Mistakes
Confusing Tg with Pg (petagram): 1 Pg = 1,000 Tg. Climate papers use both — check carefully.
Educational Tips
Global CO₂ emissions ≈ 36,000 Tg/year (or 36 Pg/year). This is a key climate number to remember.