At sea, tons typically have to do with measuring ships—and in this context, tons are generally a way to express volume rather than mass. Deadweight Ton. A volume measurement of a ship's carrying capacity, including cargo, ballast, crew, and supplies.
It is expressed in tonnes or long tons. Register Ton or Tonnage. Ton Class. A volume measurement that categorizes types of yachts based on the capacity of the hold.
Displacement Ton. A measurement of the weight of a ship. One of the uses of "ton" as a standard amount rather than a measurement happens with ore. Check out the "assay ton" to see that a ton can sometimes mean a very small amount of something! Dry Ton or Tonne. Assay Ton. This amount is the standard quantity of ore necessary for testing the ores of precious metals. Here, the ton is so removed from its original meaning that it's used to measure energy output in the same way that units like the joule or the calorie do.
Ton of TNT. This kind of ton is not a measurement of volume or mass, but instead, a specific amount of energy— calories about 4. This energy unit hasn't had anything to do with the actual chemical TNT for a long time. Tonne of Oil Equivalent. Another standard energy value, based on the amount of energy released by burning one tonne of crude oil. The very similar "tonne of coal equivalent" is the amount of energy released by burning one tonne of coal.
Ton of Refrigeration. This is a measure of heat absorption used for refrigeration and air conditioning, and comes from the days when cooling was accomplished only through ice. All you really have to know is that in the US, a ton measures mass and is the same as pounds. It helps to have a general sense that the US short ton, the UK long ton, and the metric ton are slight variations on the same measurement.
To be a ton superstar, you should remember that the ton started as a measurement of volume and is still used that way about ships. Anna scored in the 99th percentile on her SATs in high school, and went on to major in English at Princeton and to get her doctorate in English Literature at Columbia.
She is passionate about improving student access to higher education. Our new student and parent forum, at ExpertHub. See how other students and parents are navigating high school, college, and the college admissions process. If you have any suggestions or queries about this conversion tool, please contact me.
Warning: It is necessary to enable JavaScript for full calculator functionality. Here are some instructions for how to enable JavaScript in your browser. Popup calculator Copy a link to this page Print this page Email a link to this page Scroll up to form What does this mean? Quick Search:. Round decimal places : 1 2 3 4 5. Round decimal places : 1 2 3 4 5 Convert. These tools help you convert between stone, pounds and ounces st, lb and oz , all of which are measurements of mass and weight.
Supose you want to convert half stone into pounds. Note: Fractions are rounded to the nearest 8th fraction. Values are rounded to 4 significant figures. While every effort is made to ensure the accuracy of the information provided on this website, neither this website nor its authors are responsible for any errors or omissions. Therefore, the contents of this site are not suitable for any use involving risk to health, finances or property.
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