Convert Troy Pounds to Gigatons
Convert Troy Pounds (lb t) to Gigatons (Gt) instantly and accurately.
Conversion Formula
Gt = lb t × 3.732417216e-13
About Troy Pounds
A troy pound (lb t) equals 12 troy ounces or 5,760 grains - approximately 373.24 grams. It is lighter than the common avoirdupois pound (453.59 g) because the troy system divides the pound into 12 ounces rather than 16. Historically used across Europe for trade in precious metals and pharmaceuticals, the troy pound was the legal standard in England from the 15th century until 1878. In the United States, the troy pound was once the official standard for coinage but was abolished for commercial use in 1828.
About Gigatons
A gigaton (Gt) equals one billion metric tonnes (10¹² kg). It is the standard unit for planetary-scale mass measurements and global environmental budgets. Annual human CO₂ emissions are approximately 37 Gt CO₂; Earth's atmosphere contains roughly 5,480 Gt of air; Antarctic ice sheet mass is around 26,500,000 Gt of ice. Climate scientists report ice sheet mass balance changes in gigatons per year - the Greenland ice sheet loses approximately 280 Gt of ice annually due to climate change.
Quick Reference Table
| Troy Pounds (lb t) | Gigatons (Gt) |
|---|---|
| 1 lb t | 3.732 × 10-13 Gt |
| 2 lb t | 7.465 × 10-13 Gt |
| 5 lb t | 1.866 × 10-12 Gt |
| 10 lb t | 3.732 × 10-12 Gt |
| 25 lb t | 9.331 × 10-12 Gt |
| 50 lb t | 1.866 × 10-11 Gt |
| 100 lb t | 3.732 × 10-11 Gt |