Convert Quarters to Megatons
Convert Quarters (qr) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = qr × 1.270058636e-8
About Quarters
A quarter (qr) in the avoirdupois system equals 28 pounds or one quarter of a hundredweight - approximately 12.70 kg. Historically, quarters were used in British trade for measuring grain, wool, and other bulk commodities. The British quarter of grain (28 lb) was the standard purchase quantity at markets and mills throughout medieval and early modern England. In the US, the term 'quarter' sometimes refers to a quarter of a short hundredweight (25 lb) rather than the British 28 lb.
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
| Quarters (qr) | Megatons (Mt) |
|---|---|
| 1 qr | 1.27 × 10-8 Mt |
| 2 qr | 2.54 × 10-8 Mt |
| 5 qr | 6.35 × 10-8 Mt |
| 10 qr | 1.27 × 10-7 Mt |
| 25 qr | 3.175 × 10-7 Mt |
| 50 qr | 6.35 × 10-7 Mt |
| 100 qr | 1.27 × 10-6 Mt |