Kilogram to Imperial ton (long ton)
kg
ton
Conversion History
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Quick Reference Table (Kilogram to Imperial ton (long ton))
| Kilogram (kg) | Imperial ton (long ton) (ton) |
|---|---|
| 0.5 | 0.00049210326380553031 |
| 1 | 0.00098420652761106063 |
| 5 | 0.00492103263805530314 |
| 10 | 0.00984206527611060628 |
| 25 | 0.02460516319027651571 |
| 50 | 0.04921032638055303141 |
| 100 | 0.09842065276110606282 |
About Kilogram (kg)
The kilogram (kg) is the SI base unit of mass and the standard unit of weight for everyday use worldwide. Since 2019, it is defined by fixing the Planck constant (h = 6.62607015 × 10⁻³⁴ J·s), replacing the previous physical prototype kept in Sèvres, France. The kilogram is the only SI base unit still bearing a prefix ("kilo-") in its name. It is used for body weight, food packaging, luggage limits, and commerce in virtually every country that has adopted the metric system — which is all countries except the United States, Myanmar, and Liberia for everyday use.
A typical laptop weighs 1.5–2 kg. A standard bag of sugar is 1 kg. The average adult human brain weighs about 1.4 kg.
Etymology: From the French "kilogramme" (1795), combining the Greek "khilioi" (thousand) + "gramma" (small weight). The kilogram replaced older weight standards at the adoption of the metric system.
About Imperial ton (long ton) (ton)
The imperial ton, also called the long ton, is a unit of mass equal to 2,240 pounds (approximately 1,016 kg). It was the standard large-mass unit in the British Empire for bulk goods such as coal, grain, and shipping capacity. The long ton is still used in some UK industries (particularly shipping tonnage and historical contexts) but has largely been replaced by the metric tonne (1,000 kg) for commercial and scientific purposes. The difference between the long ton (1,016 kg), metric tonne (1,000 kg), and US short ton (907 kg) is roughly 10–12%, which matters in trade and engineering calculations.
A double-decker bus weighs about 8 long tons. A coal wagon in Victorian railways held about 10 long tons.
Kilogram – Frequently Asked Questions
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds. For quick mental conversion, multiplying kg by 2.2 gives a close result. To go the other way, divide pounds by 2.2 (or multiply by 0.4536) to get kilograms.
What is the difference between kg and lbs?
Kilograms (kg) are the metric unit of mass used in most of the world; pounds (lbs) are the US customary and imperial unit. 1 kg ≈ 2.205 lbs. Body weight is expressed in kg in most countries and in lbs in the United States, which causes frequent confusion in medical, fitness, and travel contexts.
Why was the kilogram redefined in 2019?
The original kilogram was defined as the mass of a physical platinum–iridium cylinder (the International Prototype Kilogram, or IPK) stored in France. The problem was that the IPK's mass drifted over time relative to official copies. In 2019, the kilogram was redefined using the Planck constant — a fundamental constant of nature — making it stable, universally reproducible, and independent of any physical object.
What is the kilogram used for in everyday life?
The kilogram is used to express body weight, grocery and produce weight, luggage allowances on flights (typically 20–30 kg checked baggage), sports equipment weight limits, and most commercial goods. In science and engineering, it is the base unit for force (newtons), pressure (pascals), and energy (joules) calculations.
How much does a liter of water weigh in kilograms?
One liter of pure water weighs almost exactly 1 kilogram at 4°C (the temperature of maximum density). At room temperature (20°C) it is 0.998 kg — effectively 1 kg for most purposes. This relationship between liter and kilogram is not a coincidence: the liter was originally defined to make it exact.
Imperial ton (long ton) – Frequently Asked Questions
What was the heaviest single object ever weighed?
The revolving service structure at NASA's Kennedy Space Center Launch Complex 39B weighed approximately 2,423 long tons (2,462 metric tonnes) when it was moved on its rail system. In construction, the Troll A offshore gas platform (North Sea) had a concrete substructure weighing about 656,000 tonnes — the heaviest object ever moved by humanity. For natural objects, the heaviest single organism is the Pando aspen grove in Utah at an estimated 6,000 tonnes, though it is debatable whether a clonal colony counts as one "object."
Is the long ton still used?
The long ton persists in some specialist UK contexts — notably maritime shipping displacement (warship displacement is often quoted in long tons), some historical industrial records, and a few US sectors such as ferrous scrap metal trading. For most purposes, the metric tonne has replaced it in the UK.
How does the long ton compare to the metric tonne?
A long ton is 1,016.05 kg, which is about 1.6% heavier than a metric tonne (1,000 kg). For rough mental conversion, they are close enough that long ton ≈ metric tonne — but in bulk commodity contracts, the 16 kg difference per tonne adds up significantly at large volumes.
Why does the UK use a different ton than the US?
Both derived from the historical English ton of 2,240 lbs (based on 20 hundredweight of 112 lbs each). The US customary system later redefined the hundredweight as 100 lbs, producing a short ton of 2,000 lbs, while the UK retained the 112-lb hundredweight and the 2,240-lb long ton.
What is a deadweight ton?
Deadweight tonnage (DWT) is a shipping measure of how much weight a vessel can carry — cargo, fuel, crew, provisions, and water — expressed in metric tonnes or long tons depending on convention. A Panamax cargo ship typically has a deadweight of 50,000–80,000 metric tonnes. DWT is distinct from displacement tonnage (the weight of water displaced by the ship itself).