A ton is a unit of weight or mass. There are three primary varieties of ton:

• The common ton or short ton, defined as 2 000 pounds avoirdupois (907 kg)
• The long ton, defined as 2 240 pounds (1 016 kg)
• The tonne, called a metric ton in the United States, is defined as 1 000 kilograms (2 204 pounds). This unit is also called a "megagram" (1 000 000 g) but "tonne" is more convenient.

Measurement

Ton | Tonne | ton | tuno | tonelada | Tonn | Tonne | 톤 | Ton | トン | tona | tona | 吨