Convert bushels ↔ pounds ↔ metric tons for common grains.
A bushel is a volume measure, but grain is traded by weight using standard test weights: corn 56 lbs/bu, wheat 60, soybeans 60, barley 48, oats 32, rice (rough) 45 lbs/bu. These are US standards; metric countries use tonnes. Conversions: 1 short ton = 2,000 lbs; 1 metric tonne = 2,204.6 lbs. To convert bushels to metric tonnes: MT = bushels × (lbs/bu) / 2204.62. World corn production is about 1.2 billion metric tonnes/year. Grain moisture affects weight — wet grain weighs more per bushel but has less dry matter. Grain elevators discount or reject loads above standard moisture (e.g., corn > 15.5%).