What is a ton?
A ton is a unit of measurement commonly used to quantify weight or mass. There are three main types of tons: the metric ton (also known as the tonne), the imperial ton (also known as the long ton) and the American / English ton (also known as the short ton).
The metric ton, or tonne, is the standard unit of mass in the metric system and is used in most countries around the world. It is equal to 1,000 kilograms or approximately 2,204.62 pounds.
The imperial ton, or long ton, is used in the United Kingdom and some other countries and is equal to 2,240 pounds or 1,016.05 kilograms.
The American ton, or short ton, is used in the United States and some other countries and is equal to 2,000 pounds or 907.18475 kilograms.
What is a kilogram?
A kilogram is metric unit of weight subdivided into 1,000 grams. The base unit of mass in the International System of Units (SI) is a kilogram and not, as is quite often mistaken, the gram.
One liter of water weighs 1kg.