1t

1t, commonly written as t, stands for one metric ton or tonne. It is a unit of mass equal to 1,000 kilograms. The tonne is a non-SI unit that is accepted for use with the SI and is widely used in international trade, logistics, and industry to express large masses.

Symbol and conversions: The standard symbol is t. By definition, 1 t = 1,000 kg exactly. In pounds (avoirdupois), this is approximately 2,204.6226 lb. In U.S. customary units, 1 t is about 1.10231 short tons, and in British imperial units, about 0.984206 long tons.

Applications and usage: The tonne is common in shipping, freight, construction, mining, and agriculture. It is used in specifications for equipment masses, payload capacities, and emissions reporting. In scientific contexts where precise mass is required, kilograms are typically preferred, with tonnes used for readability when numbers are large.

Notes: The symbol t should not be confused with the symbol T (tesla) or with the time variable t. The term tonne is sometimes spelled “metric ton” in American English to distinguish it from the short ton used in the United States. The tonne is defined as exactly 1,000 kilograms by international agreement, making it a convenient unit for expressing mass in bulk quantities.