Gigagram to Teragram Converter
Unit Converter
Instant · Precise · Universal
34 units available
6 categories total
How to Convert Gigagram to Teragram
To convert Gg to tonnes: multiply by 1,000. To convert Gg to kg: multiply by 10⁶.
1 Gg = 10⁹ g = 10⁶ kg = 1,000 tonnes.
For example, 1 Gigagram (Gg) = 0.001 Teragram (Tg).
Gigagram to Teragram — Common Values
| Gigagram (Gg) | Teragram (Tg) |
|---|---|
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1000 | 1 |
About Gigagram (Gg)
Definition
The gigagram is equal to 10⁹ grams or 1,000 tonnes (metric tons).
Mathematical Relationship
1 Gg = 10⁹ g = 10⁶ kg = 1,000 tonnes.
Conversion Formula
To convert Gg to tonnes: multiply by 1,000. To convert Gg to kg: multiply by 10⁶.
Practical Applications
National emissions reports, large mining output figures, and major commodity trade volumes.
Interesting Facts
The Great Pyramid of Giza has an estimated mass of about 6,000 Gg (6 million tonnes).
Common Mistakes
Confusing Gg (gigagram) with GB (gigabyte). In mass contexts, G always means giga = 10⁹.
Educational Tips
1 Gg = 1 kilotonne = 1,000 tonnes. Used when 'tonnes' gets unwieldy for very large masses.
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.