Convert Grams to Megatons
Convert Grams (g) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = g × 1.000000000e-12
About Grams
The gram (g) is the basic metric unit of mass, equal to one thousandth of a kilogram. It is universally used in cooking, nutrition, postal services, and scientific measurement. Almost all food packaging worldwide shows nutritional information per 100 g. A US nickel coin weighs exactly 5 g, a teaspoon of sugar about 4 g, and a standard paperclip approximately 1 g. In chemistry, the gram is central to molar mass: one mole of carbon-12 atoms weighs exactly 12 g. Postal rates are typically scaled per gram or per 100 g.
About Megatons
A megaton (Mt) equals one million metric tonnes (10⁹ kg). Nuclear weapon yields are measured in megatons of TNT equivalent: the largest weapon ever detonated, the Soviet Tsar Bomba tested in 1961, had a yield of approximately 50 Mt TNT and produced a fireball 8 km in diameter. Annual global CO₂ emissions are reported in gigatons (Gt), but regional emissions data and specific industrial sectors are quoted in megatons. The Chicxulub asteroid impact that caused the Cretaceous-Paleogene mass extinction released energy equivalent to roughly 100 million Mt of TNT.
Quick Reference Table
| Grams (g) | Megatons (Mt) |
|---|---|
| 1 g | 1 × 10-12 Mt |
| 2 g | 2 × 10-12 Mt |
| 5 g | 5 × 10-12 Mt |
| 10 g | 1 × 10-11 Mt |
| 25 g | 2.5 × 10-11 Mt |
| 50 g | 5 × 10-11 Mt |
| 100 g | 1 × 10-10 Mt |