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Ounces to Long Tons (oz to long tn) Converter

1 oz = 0.00003 long tn

1 Ounce equals 0.00003 Long Tons (1 oz = 0.00003 long tn). Convert Ounces to Long Tons with formula, table, and examples.

One ounce equals approximately 0.0000279 long tons, or equivalently, one long ton contains 35,840 ounces. The long ton (also called the imperial ton or displacement ton) weighs 2,240 pounds and was the standard ton in Britain and the British Empire for centuries.

How to Convert Ounces to Long Tons

long tn = oz ÷ 35,840
Divide the value in Ounces by 35,840
  1. Take your value in Ounces
  2. Divide by 35,840
  3. Read the result in Long Tons

Common Ounces to Long Tons Conversions

Ounces (oz) Long Tons (long tn) Status
1 oz 0.0000279018 long tn
2 oz 0.0000558036 long tn
5 oz 0.0001395089 long tn
10 oz 0.0002790179 long tn
25 oz 0.0006975446 long tn
50 oz 0.0013950893 long tn
100 oz 0.0027901786 long tn
500 oz 0.0139508929 long tn
1,000 oz 0.0279017857 long tn

Good to Know About Ounces to Long Tons Conversion

The long ton's 2,240-pound weight reflects its origin as 20 long hundredweights of 112 pounds each. This system allowed British merchants to use simple mental arithmetic: multiply hundredweights by 20 for tons, or divide tons by 20 for hundredweights. The long ton was the official unit for Royal Navy ship displacement until metrication, and many famous warship specifications from HMS Victory to the Dreadnoughts were recorded in long tons.

Ounces to Long Tons: What You Need to Know

Naval architects historically specified ship displacement in long tons, and the Royal Navy used the unit extensively through both World Wars. The long ton also served as the standard for British coal production statistics, iron ore trading, and agricultural bulk sales. In modern shipping, the long ton occasionally appears in contracts involving traditional commodities or when referencing historical tonnage records.

What is a Ounce? oz

An imperial and US customary unit of mass equal to approximately 28.35 grams. Commonly used in the US and UK for food and postal weight.

Imperial Us-customary food packaging (US/UK) postal weight cooking (US)
Learn more about Ounce →

What is a Long Ton? long tn

A long ton (imperial ton) is a unit of mass equal to exactly 2,240 pounds or 1,016.0469088 kilograms. It is used primarily in the United Kingdom for shipping and naval displacement.

Imperial UK shipping naval displacement Commonwealth trade
Learn more about Long Ton →

Going the other way? Use our Long Tons to Ounces converter.

Ounces to Long Tons FAQ

  • One long ton contains exactly 35,840 ounces. This comes from 2,240 pounds per long ton multiplied by 16 ounces per pound.

  • A long ton is 2,240 pounds (used in Britain), while a short ton is 2,000 pounds (used in the United States). The long ton is about 12 percent heavier than the short ton. Neither should be confused with the metric ton (tonne), which is 2,204.62 pounds.

  • The long ton has been largely replaced by the metric ton in international trade since Britain's metrication. It survives in some maritime contexts, particularly in older contracts, and the US Navy still occasionally uses it for calculating ship displacement.

Non-Frequently Asked Questions About Ounces to Long Tons

Questions nobody should ask - but someone did.

  • Because the British Empire, the United States, and the rest of the world could not agree on how heavy a ton should be. The result is the long ton (2,240 lbs), the short ton (2,000 lbs), and the metric ton (2,204.6 lbs), which are different enough to cause confusion but similar enough that you might not notice until it is too late.

  • Yes, exactly. That is 35,840 first-class letters, which at current US postage rates would cost over 24,000 dollars to mail. The postal service would probably have some questions about your correspondence volume, and your mail carrier would definitely need a larger truck.

  • You would be lifting 1/35,840th of a long ton, which is technically a fraction of a long ton but not a claim anyone would take seriously. That is like saying you climbed Mount Everest because you walked up a flight of stairs.

Need the reverse? Use our Long Tons to Ounces converter. See all Weight & Mass converters.