Stone to US ton (short ton)
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Conversion History
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Quick Reference Table (Stone to US ton (short ton))
| Stone (st) | US ton (short ton) (ton) |
|---|---|
| 6 | 0.042 |
| 7 | 0.049 |
| 8 | 0.056 |
| 9 | 0.063 |
| 10 | 0.07 |
| 11 | 0.077 |
| 12 | 0.084 |
| 13 | 0.091 |
| 14 | 0.098 |
About Stone (st)
The stone (st) is a unit of weight equal to 14 pounds (approximately 6.35 kg), used almost exclusively in the United Kingdom and Ireland for expressing human body weight. A person weighing 70 kg is approximately 11 stone. The stone is rarely used outside body weight — commercial goods, food, and science all use kilograms in the UK. The stone is not part of the metric system and has no formal SI equivalent; its continued use is a cultural habit, particularly in older generations and media coverage of boxing and fitness.
Average UK adult body weight is often quoted as 11–13 stone. A jockey must typically weigh under 8.5 stone to compete.
Etymology: From the practice of using actual stones as counterweights on balance scales. Standardised in England at 14 pounds by the Weights and Measures Act 1835.
About US ton (short ton) (ton)
The US ton, also called the short ton, is a unit of mass equal to 2,000 pounds (approximately 907 kg). It is the standard large-mass unit in the United States for bulk materials such as coal, gravel, recycled metals, and agricultural commodities. The short ton is roughly 10% lighter than the metric tonne (1,000 kg) and about 12% lighter than the imperial long ton (1,016 kg). In practice, "ton" in American English almost always means the short ton. Cargo weight, construction materials, and HVAC capacity (where "ton" refers to cooling capacity derived from melting a short ton of ice per day) all use the short ton.
A pickup truck typically has a payload capacity of 0.5–1 short ton. A cord of firewood weighs roughly 2–2.5 short tons.
Stone – Frequently Asked Questions
How many pounds are in a stone?
One stone equals exactly 14 pounds. A person who weighs 10 stone weighs 140 pounds (63.5 kg). To convert stone to kilograms, multiply by 6.35; to convert to pounds, multiply by 14.
Do people outside the UK use stone for weight?
Stone is used in the UK and Ireland for body weight but is virtually unknown elsewhere. Australians, Canadians, and New Zealanders — who all once used it — have largely switched to kilograms. Americans use only pounds. If you quote your weight in stone outside the British Isles, expect blank looks.
Why is a stone 14 pounds?
The stone historically varied between 8 and 26 pounds depending on the commodity (wool, meat, cheese). The 14-pound standard was established by the English Weights and Measures Act of 1835, partly because 14 divides evenly into the 28-pound quarter and the 56-pound half-hundredweight.
Is stone used in medical settings in the UK?
The NHS officially uses kilograms in clinical contexts, and most medical equipment is calibrated in kg. However, many patients still report their weight in stone, so UK healthcare professionals routinely work in both systems. Obesity classifications (BMI categories) are always calculated in kilograms.
How do I convert my weight from kilograms to stone and pounds?
Divide your weight in kg by 6.35 to get stone. The whole number is your stone value; multiply the decimal remainder by 14 to get the remaining pounds. Example: 75 kg ÷ 6.35 = 11.81 stone → 11 stone and (0.81 × 14) ≈ 11 lbs, so 75 kg ≈ 11 stone 11 lbs.
US ton (short ton) – Frequently Asked Questions
How many pounds are in a US (short) ton?
One US short ton equals exactly 2,000 pounds (approximately 907 kg). To convert short tons to kilograms, multiply by 907.185. To convert to metric tonnes, multiply by 0.907.
What does "ton" mean in air conditioning (HVAC)?
In HVAC, a "ton of refrigeration" is a unit of cooling power equal to the heat absorbed by melting one short ton (2,000 lbs) of ice in 24 hours — approximately 3.517 kilowatts or 12,000 BTU/hour. A 3-ton AC unit has 3 × 12,000 = 36,000 BTU/h of cooling capacity. This has nothing to do with the weight of the equipment.
How many tons of food does an average person eat in a lifetime?
An average person in a developed country eats roughly 2–2.5 lbs of food per day (about 1 short ton per year). Over a 75-year lifespan, that is approximately 75 short tons (68 metric tonnes) of food — enough to fill about three standard shipping containers. Broken down: roughly 8 tonnes of fruit and vegetables, 5 tonnes of meat, 6 tonnes of grain products, 8 tonnes of dairy, and the rest in fats, sugars, and beverages. The water required to produce that food is about 50,000 tonnes — 700 times the food weight itself.
Which industries in the US still use short tons?
Short tons remain standard in US coal mining and electricity generation, steel and ferrous scrap recycling, agricultural commodities (grain, fertiliser), and construction materials (gravel, asphalt). International trade documentation typically requires conversion to metric tonnes for global contracts.
What weighs exactly one short ton that you might encounter in daily life?
A Honda Civic (2024 base model) has a curb weight of almost exactly 2,000 lbs — one short ton. A standard pallet of bottled water (84 cases of 24 × 500 mL bottles) weighs about 2,000 lbs. A cubic yard of dry sand weighs roughly one short ton. A grand piano ranges from 700 to 1,200 lbs, so you need about two of them. A typical adult horse weighs 900–1,100 lbs, so two average horses together are close to one short ton.