Convert hundredweight to pounds β both kinds. The US (short) hundredweight is exactly 100 lb; the imperial (long) hundredweight is exactly 112 lb. One page, because the distinction IS the answer.
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What this converter does
It converts hundredweight to pounds, for both hundredweights. The US or short hundredweight is exactly 100 lb; the imperial or long hundredweight is exactly 112 lb. This page covers both on one page rather than splitting them, because the distinction between them is not a footnote to the answer β it is the answer.
The two definitions
US hundredweight: exactly 100 pounds. Imperial hundredweight: exactly 112 pounds. Both are abbreviated cwt, which is precisely the problem β a bare cwt in a document does not say which is meant, and the gap between them is twelve percent. Selecting the variant on this page is therefore the first and most important step, and the result is labelled with the choice so the answer cannot be misread later.
Why 112
Because the imperial hundredweight is eight stone of fourteen pounds each. The British chain built upward from the stone, giving 112 lb, while the United States rationalised the unit to a decimal 100 lb some time later. Twenty hundredweight make a ton in both systems, which is why the same twelve percent reappears between the US short ton at 2,000 lb and the imperial long ton at 2,240.
Worked examples
1 US cwt is 100 lb; 1 imperial cwt is 112 lb. 5 US cwt is 500 lb; 5 imperial cwt is 560 lb. 20 of either makes a ton β 2,000 lb for the US short ton, 2,240 lb for the imperial long ton. The arithmetic is trivial once the variant is settled, which is the entire argument for putting the choice in front of the calculation.
What cwt stands for
Hundredweight, written with c for the Roman numeral hundred and wt for weight. The abbreviation is identical for both variants across every document that uses either, which is a genuine hazard rather than a quirk β the notation actively conceals the distinction it most needs to convey. Some careful sources write cwt (US) and cwt (UK), or long cwt and short cwt, and those are the documents worth trusting.
Where the hundredweight still appears
US agricultural pricing quotes many commodities per hundredweight β milk, livestock, and some grains and produce β where it is abbreviated cwt and means the 100-pound variant. British usage is largely historical, surviving in older trade documents, agricultural records and shipping papers. Neither variant is common in general commerce today, which means most encounters with the unit are in specialist pricing or in archives.
Telling which one a document means
Geography and date do most of the work: American sources mean 100 lb, British sources before metrication mean 112 lb. Where a document gives a ton figure as well, the ratio settles it, since twenty hundredweight make a ton in both systems β a 2,000-pound ton implies the 100-pound hundredweight. Where nothing settles it, the twelve percent at stake is usually worth an email rather than an assumption.
Not the quintal
The metric quintal is exactly 100 kilograms, which is more than double the US hundredweight of 45.36 kg. Both are hundred-of-something units and neither resembles the other in size. The names invite the confusion, and Indian agricultural documents quoting quintals sit close enough to trade contexts quoting hundredweight that the mistake genuinely happens.
Precision
Both factors are whole numbers and both hundredweights are exact multiples of the exactly defined pound, so the conversion is exact and the display precision is purely presentational. There is nothing in this arithmetic that can round, which makes any discrepancy between two answers a matter of which variant was selected rather than of calculation.
Common mistakes
Assuming a bare cwt is the local variant when the document is foreign. Converting a quintal as a hundredweight. Applying the 112 to an American pricing figure, which overstates a quantity by twelve percent and a payment along with it. And forgetting that twenty hundredweight make a ton in both systems, which means a ton figure inherits whichever hundredweight the document used.
Benchmarks
US: 1 cwt is 100 lb, 5 cwt is 500 lb, 10 cwt is 1,000 lb, 20 cwt is 2,000 lb β one short ton. Imperial: 1 cwt is 112 lb, 5 cwt is 560 lb, 10 cwt is 1,120 lb, 20 cwt is 2,240 lb β one long ton. The two columns differ by exactly twelve percent at every row.
Accuracy and limits
Exact whole-number factors, exact decimal arithmetic, display-only rounding, and refusal of ambiguous input with an explanation. The tool converts whichever hundredweight you select and labels the result; it cannot determine which one an outside document intended.
The quarter, between stone and hundredweight
Older British documents carry one more rung: the quarter, being a quarter of a hundredweight, which is 28 pounds or two stone. Compound weights in trade papers run tons, hundredweight, quarters and pounds, abbreviated t, cwt, qr and lb. Encountering qr in a weight column means 28 pounds each, and resolving the whole figure into pounds before converting anything is the reliable way to read it.
Why US agriculture kept it
Because commodity pricing settled on the unit before metrication was ever on the table, and the entire body of price history, contracts and reporting is denominated in it. Milk is quoted per hundredweight in the United States to this day, which makes the unit ordinary in one industry and invisible everywhere else. Changing it would break comparability with decades of data for no operational gain, which is the same reason the grain survives in ammunition and the troy ounce in bullion.
Why the abbreviation is the hazard
Almost every measurement problem in this cluster comes from a shared name, and cwt is the sharpest case: one abbreviation, two masses, twelve percent apart, with no notational hint as to which is meant. Compare the tons, where at least tonne and ton differ in spelling, or the ounces, where troy is usually written out. A document using cwt without qualification has discarded the information most needed to read it, which is why any figure taken from such a source deserves a check against something else in the same document before being relied on.
Converting a full compound weight
Older British trade papers give weights as tons, hundredweight, quarters and pounds together. Resolving one means multiplying each component by its pound value and summing: tons by 2,240, hundredweight by 112, quarters by 28, and the pounds as they stand. A figure of 2 t 3 cwt 1 qr 5 lb is 4,480 plus 336 plus 28 plus 5, which is 4,849 lb. Doing the whole thing in pounds once is far more reliable than converting each component separately, and it produces a single number that can be checked.
How to use the Hundredweight to Pounds Converter
- Choose which hundredweight you have β US or imperial.
- Enter the value and read the pounds.
- The US hundredweight is exactly 100 lb; the imperial is exactly 112 lb.
- For the metric equivalent, use the hundredweight to kilograms page.
Frequently asked questions
How many pounds are in a hundredweight?
It depends which one. The US or short hundredweight is exactly 100 lb. The imperial or long hundredweight is exactly 112 lb. Both are called cwt, and the twelve-pound difference between them is the reason this page covers both rather than picking one.
Why is the imperial hundredweight 112 pounds?
Because it is eight stone of fourteen pounds each. The British chain built upward from the stone, giving 112 lb, while the United States rationalised the unit to a decimal 100 lb. Twenty hundredweight make a ton in both systems, which is why the two tons differ by exactly the same proportion.
What does cwt stand for?
Hundredweight, using c for the Roman hundred and wt for weight. The abbreviation is identical for both variants, which is precisely the problem β a bare cwt in a document does not say which hundredweight is meant, and the difference is twelve percent.
Where is the hundredweight still used?
US agricultural pricing quotes many commodities per hundredweight, particularly milk, livestock and some grains. British usage is largely historical, surviving in older trade documents and agricultural records. Neither is common in general commerce today.
How do I tell which hundredweight a document means?
Geography and date. American sources mean 100 lb; British sources before metrication mean 112 lb. Where a document gives a total in tons as well, the ratio settles it: twenty hundredweight to the ton in both systems, so a 2,000 lb ton means the 100 lb variant.
Is the hundredweight related to the quintal?
Only by the idea of a hundred of something. The metric quintal is exactly 100 kg, which is more than double the US hundredweight of 45.36 kg. The names invite confusion and the sizes do not resemble each other at all.
Are both conversions exact?
Yes. Both hundredweights are whole-number multiples of the exactly defined pound, so 100 and 112 are definitions rather than measurements and the conversion is exact until display.
