How many stones are in one long ton?

Exactly 160 stones make one long ton. This is 8 stones per hundredweight times 20 hundredweights per long ton.

How do I convert stones to long tons?

Divide stones by 160, or multiply by 0.00625. For example, 320 stones equals exactly 2 long tons.

Why is this ratio exact?

Because the long ton is defined through the hundredweight (20 cwt = 1 long ton) and the hundredweight through the stone (8 stone = 1 cwt), giving 160 stones per long ton exactly.

Stones to Long Tons (st to long tn) Converter

1 st = 0.0063 long tn

1 Stone equals 0.0063 Long Tons (1 st = 0.0063 long tn). Convert Stones to Long Tons with formula, table, and examples.

One stone equals exactly 0.00625 long tons, or equivalently, exactly 160 stones make one long ton. This clean ratio reflects the British imperial system's internal coherence: 8 stones per hundredweight times 20 hundredweights per long ton gives 160 stones per long ton, all exact integers.

How to Convert Stones to Long Tons

long tn = st ÷ 160

Divide the value in Stones by 160

Take your value in Stones
Divide by 160
Read the result in Long Tons

Common Stones to Long Tons Conversions

Stones (st)	Long Tons (long tn)	Status
1 st	0.00625 long tn
5 st	0.03125 long tn
8 st	0.05 long tn
10 st	0.0625 long tn
14 st	0.0875 long tn
20 st	0.125 long tn
50 st	0.3125 long tn
80 st	0.5 long tn
100 st	0.625 long tn
160 st	1 long tn
200 st	1.25 long tn
500 st	3.125 long tn
1,000 st	6.25 long tn

Good to Know About Stones to Long Tons Conversion

The 160-stone long ton completes the British imperial weight chain: 14 pounds per stone, 8 stones per hundredweight, 20 hundredweights per long ton, giving 160 x 14 = 2,240 pounds per long ton. Every link is an exact integer, creating a system of perfect internal consistency that medieval merchants could navigate entirely through mental arithmetic.

Stones to Long Tons: What You Need to Know

Historical British records expressing both body weights (in stones) and cargo weights (in long tons) share this conversion. A ship's passenger manifest listing weights in stones could be totaled in long tons for displacement calculations.

What is a Stone? st

A British unit of mass equal to 14 pounds or approximately 6.35 kilograms. Commonly used in the UK and Ireland for body weight.

Imperial body weight (UK/Ireland) horse racing

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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 Stones converter.

Stones to Long Tons FAQ

Exactly 160 stones make one long ton. This is 8 stones per hundredweight times 20 hundredweights per long ton.
Divide stones by 160, or multiply by 0.00625. For example, 320 stones equals exactly 2 long tons.
Because the long ton is defined through the hundredweight (20 cwt = 1 long ton) and the hundredweight through the stone (8 stone = 1 cwt), giving 160 stones per long ton exactly.

Non-Frequently Asked Questions About Stones to Long Tons

Questions nobody should ask - but someone did.

At an average of about 11 stone per person, one long ton (160 stones) equals roughly 14.5 adults. This is the capacity of a large elevator or a small bus, and it is the weight at which medieval bridges started to groan.
About 7,412,480 stones. If each stone represented one person at 14 pounds, the Titanic's displacement equaled the weight of roughly 7.4 million one-stone units, or about 674,000 average adults. The actual passenger and crew complement was about 2,200, meaning the ship itself outweighed its occupants by a factor of about 300.
It is useful for understanding scale. Knowing that a long ton is 160 stones means you can instantly calculate that a 10-ton truck carries the equivalent of roughly 1,600 stones of cargo, or about 145 average adults' worth of weight. The stone provides a human-scale reference point for tonnage that kilograms and pounds lack.