Gigagram is 1000000000 gram units.
Gigagrams to Teragrams Converter — Gg to Tg
Convert Gigagram (Gg) to Teragram (Tg) using the exact conversion factor (1 gigagram = 0.001 teragram). See the formula, worked examples, and conversion table.
Gigagrams to Teragrams converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
Teragram is 1000000000000 gram units.
Result = input x 1e+6 / 1e+9.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gigagrams to Teragrams
Weight conversions between Gigagram and Teragram come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: Gigagram is 1000000000 gram units, and teragram is 1000000000000 gram units.
Formula
teragrams = gigagrams × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 gigagram equals 1000000 base units, and 1 teragram equals 1000000000 base units, so dividing one by the other gives the direct gigagram-to-teragram factor of 0.001.
Simple example
1 Gg × 0.001 = 0.001 Tg
1 gigagram = 0.001 teragrams.
Real-world example
50 Gg × 0.001 = 0.05 Tg
50 gigagrams = 0.05 teragrams.
Conversion table
| Gigagram (Gg) | Teragram (Tg) |
|---|---|
| 1 Gg | 0.001 Tg |
| 5 Gg | 0.005 Tg |
| 10 Gg | 0.01 Tg |
| 25 Gg | 0.025 Tg |
| 50 Gg | 0.05 Tg |
| 100 Gg | 0.1 Tg |
Reverse conversion: Teragram to Gigagram
0.001 Tg × 1000 = 1 Gg
0.001 teragrams = 1 gigagram.
gigagrams = teragrams × 1000
For a page dedicated to this direction, see Teragram to Gigagram.
Understanding the Gigagram (Gg)
Gigagram is 1000000000 gram units.
Understanding the Teragram (Tg)
Teragram is 1000000000000 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many teragrams are in 1 gigagram?
1 gigagram equals 0.001 teragrams, using the exact defined conversion factor rather than an estimate.
How do I convert gigagram to teragram?
Multiply the gigagram value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert teragram back to gigagram?
Use the reverse factor: 1 teragram equals 1,000 gigagrams. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigagram?
Gigagram (Gg) is a unit of mass/weight.
What is a teragram?
Teragram (Tg) is a unit of mass/weight.
Is the gigagram to teragram conversion exact?
Yes. Both gigagram and teragram are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.