Carats to Pounds Converter (ct to lb)
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Convert Pounds to Carats (lb to ct) ▶

Conversion Table

carats to pounds
ctlb
1000 ct 0.4409 lb
2000 ct 0.8819 lb
3000 ct 1.3228 lb
4000 ct 1.7637 lb
5000 ct 2.2046 lb
6000 ct 2.6456 lb
7000 ct 3.0865 lb
8000 ct 3.5274 lb
9000 ct 3.9683 lb
10000 ct 4.4093 lb
11000 ct 4.8502 lb
12000 ct 5.2911 lb
13000 ct 5.732 lb
14000 ct 6.173 lb
15000 ct 6.6139 lb
16000 ct 7.0548 lb
17000 ct 7.4957 lb
18000 ct 7.9367 lb
19000 ct 8.3776 lb
20000 ct 8.8185 lb

How to convert

1 carat (ct) = 0.000440925 pound (lb). Carat (ct) is a unit of Weight used in Standard system. Pound (lb) is a unit of Weight used in Standard system.

Carats: A Unit of Weight

Carats are a unit of weight that are used for measuring gemstones and pearls. Carats are derived from the Arabic word qirat, which means a small weight or a seed. The symbol for carat is ct.

Definition of the Carat

The carat is defined as 200 milligrams, which is one fifth of a gram. The carat is divided into 100 points, which are each 2 milligrams. For example, a diamond that weighs 0.5 carat can also be expressed as 50 points or 100 milligrams.

The carat is not a legal unit of measurement in most countries, except for some that use the metric system, such as France, Belgium, Italy and Switzerland. In other countries, such as the United States, Canada, Australia and New Zealand, the carat is used as a standard unit for the diamond industry.

How to Convert Carats

Carats can be converted to other units of weight by using conversion factors or formulas. Here are some examples of how to convert carats to other units of weight in the US customary system and the SI system:

  • To convert carats to ounces, divide by 141.7476. For example, 10 ct = 10 / 141.7476 = 0.071 oz.
  • To convert carats to pounds, divide by 2267.962. For example, 20 ct = 20 / 2267.962 = 0.009 lb.
  • To convert carats to tons (short), divide by 4535923.7. For example, 50 ct = 50 / 4535923.7 = 0.000011 ton.
  • To convert carats to grams, divide by 5. For example, 100 ct = 100 / 5 = 20 g.
  • To convert carats to kilograms, divide by 5000. For example, 200 ct = 200 / 5000 = 0.04 kg.
  • To convert carats to milligrams, multiply by 200. For example, 25 ct = 25 x 200 = 5000 mg.

Where Carats are Used

Carats are used in different countries and regions for different applications and purposes. Here are some examples of where carats are used:

  • In most countries that use the metric system, carats are used for measuring gemstones and pearls, such as diamonds, rubies, sapphires, emeralds and pearls.
  • In the United States, carats are used for measuring gemstones and pearls, especially for diamonds and diamond jewelry.
  • In Canada, Australia and New Zealand, carats are used for measuring gemstones and pearls, especially for diamonds and diamond jewelry.
  • In China, carats are used for measuring gemstones and pearls, especially for jade and jade jewelry.
  • In India, carats are used for measuring gemstones and pearls, especially for gold and gold jewelry.

History of Carats

Carats have a long history that dates back to ancient times. Here are some highlights of the history of carats:

  • The carat was originally based on the weight of a carob seed, which was used as a counterweight in balance scales by ancient traders and jewelers. The carob seed was believed to have a uniform weight of about one fifth of a gram.
  • The carat was used in different systems of measurement, such as the Roman system, the Byzantine system, the Arabic system and the Ottoman system. It varied from about 180 milligrams to about 220 milligrams depending on the region and the time period.
  • The carat was standardized by international agreements in different periods of history. For example, in 1575 an agreement between France and England fixed the carat at 205 milligrams; in 1871 an agreement between Parisian jewelers fixed the carat at 205.3 milligrams; in 1907 an agreement between the International Committee of Weights and Measures fixed the carat at exactly 200 milligrams.

Example Conversions of Carats to Other Units

Here are some examples of conversions of carats to other units of weight:

  • 1 ct = 0.007055 oz
  • 1 ct = 0.000441 lb
  • 1 ct = 0.00000022 ton
  • 1 ct = 0.2 g
  • 1 ct = 200 mg
  • 1 ct = 200000 µg
  • 1 ct = 0.643 troy oz
  • 1 ct = 0.643 apothecaries’ oz
  • 1 ct = 0.706 Spanish oz
  • 1 ct = 0.671 French oz

Pounds: A Unit of Weight

Definition of the Pound

A pound is a unit of weight that measures how much force an object or substance exerts on a scale due to gravity. It is equal to 0.45359237 kilograms, or 16 ounces, or 7000 grains. One pound can also be written as lb or lbs.

History of the Pound

The pound was originally defined in ancient Rome as the mass of a bronze bar called a libra, which was divided into 12 ounces. The libra was later adopted by various regions and countries in Europe, such as England, France and Germany, with different values and subdivisions.

The pound as we know it today is based on the avoirdupois system, which was developed in the 13th century in France and England. The avoirdupois pound was standardized in 1959 by an international agreement among the United States, Canada, Australia, New Zealand and South Africa as exactly 0.45359237 kilograms.

The pound, as well as other units of weight, such as the ounce and the ton, were introduced in the 19th century as part of the imperial system of measurement that aimed to unify the units used in the British Empire. The pound was officially adopted by the International System of Units (SI) in 1960 as one of the seven base units.

How to Convert Pounds

To convert pounds to other units of weight, we need to use conversion factors that relate the pound to the desired unit. For example, to convert pounds to kilograms, we need to know that one kilogram is equal to 2.2046226218 pounds. Therefore, one pound is equal to 0.45359237 kilograms.

Here are some common conversion factors for pounds:

  • 1 lb = 0.45359237 kg
  • 1 lb = 16 oz
  • 1 lb = 7000 gr
  • 1 lb = 0.0005 t
  • 1 lb = 0.0714285714 st

To convert from other units of weight to pounds, we need to use the inverse of these conversion factors. For example, to convert kilograms to pounds, we need to multiply by 2.2046226218.

Where Pounds are Used

The pound is a unit of weight that is widely used in the United States and some other countries that have historical ties with Britain, such as Canada and Australia. It is commonly used to measure the weight of people, animals, food, clothes and other everyday items. For example, an average adult male in the United States has a weight of about 198 lbs.

The pound is also used to measure some physical quantities such as force, pressure and torque. For example, one pound-force (lbf) is equal to one pound times the standard acceleration due to gravity (32.174 ft/s2).

Example Conversions of Pounds to Other Units

Here are some examples of how to convert pounds to other units of weight using the conversion factors given above:

  • 2 lb = 2 x 0.45359237 kg = 0.90718474 kg
  • 3 lb = 3 x 16 oz = 48 oz
  • 4 lb = 4 x 7000 gr = 28000 gr
  • 5 lb = 5 x 0.0005 t = 0.0025 t
  • 6 lb = 6 x 0.0714285714 st = 0.4285714284 st

Conclusion

The pound is a unit of weight that measures how much force an object or substance exerts on a scale due to gravity. It is equal to 0.45359237 kilograms, or 16 ounces, or 7000 grains. The pound is widely used in the United States and some other countries that have historical ties with Britain, such as Canada and Australia, as well as some physical quantities such as force, pressure and torque. To convert pounds to other units of weight, we need to use conversion factors that relate the pound to the desired unit.



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