It so happened historically that gold has different measures of weight. When trading with gold, completely different values ​​are used. For example, the concept of "an ounce of gold in grams" is used. Initially, it is not clear what specific weight the precious metal has.

Measures of the weight of gold are converted into familiar units. But at first it can cause confusion when buying or selling metal. For example, in the countries of the former Soviet Union rarely used such units of measurement as pounds, ounces. And accordingly, people need time to understand the nuances of weighing.

An ounce of gold

How did the troy ounce originate?

To figure out when troy ounce, you should delve into the history of monetary transactions in the Middle Ages. The thing is that in the French town of Troyes, fairs have long been held, to which merchants from all over the world came. Since either coins were used as money, sellers and buyers had to agree on the value of this coin. Then it was customary to weigh the ingot and compare its weight with the troy pound of silver - the main coin of France at that time.

This measure of weight passed to England and has survived to our times in relation to precious metals. And since fixing and daily price setting take place in London, according to tradition, they decided not to change the measure of weight. Therefore, it is beneficial for many banks to use the troy type of measurement, because it is on it that quotes are set.

The course is updated daily at 10.30 and 15.00 London time. And the five largest banks in the world do it: Deutsche Bank, Société Générale, HSBC, Scotia Mocatta and Barclays Capital. Individual brokers are not involved in the process. Banks take into account the supply and demand for the precious metal and draw conclusions based on economic indicators.

When calculating quotes, analysts and bank representatives use three currencies: the US dollar, the euro and the British pound sterling. A troy ounce of gold in grams is equal to 31.103. Therefore, if you calculate the cost of a product or an ingot in grams, in order to see the cost, do not forget to translate the weight measures.

It is also used in the following areas:

• banking - it most of all affects the cost of the precious metal, since all transactions of its purchase and sale go through banks;
• the jewelry industry uses this weight to calculate the amount of gold needed for a piece;
• pharmacology does not count gold, but medicinal substances, which is quite rare in our time.

It is in these areas that the exact weight of any product is used. But besides the troy ounce, there are other types of this unit of measurement. For example:

• An ounce of avoirdupois, which corresponds to 28.34 grams of metal.
• Pharmaceutical ounce, which equals 29.86 grams. Used for weighing medicines. Now the indicator is used for the manufacture of homeopathic substances.
• The ancient Roman ounce is the very first type of measure of weight. It has also been used for antique coins and other merchandise. Since this is a historical figure, it is not entirely accurate and is approximately 27.4 grams.
• An ounce of Maria Theresa equals 31.125 grams.

You need to know this in order to calculate the value of the precious metal. Therefore, an unambiguous answer to how much 1 ounce of gold weighs cannot be given. When making trading operations, especially if they are large, look at the measure of the weight of the precious metal and translate it into the usual values.

The governments of some countries, for example, the USA, China, Canada, have introduced investment and collection ones that have a weight of one ounce. Among them there are such instances:

1. Canadian maple leaf.
2. American eagle.
3. Chinese panda.
4. Austrian Philharmonic.

It is enough to pick up a coin and weigh it to find out how many grams are in an ounce of gold. This was done for convenience, but such coins are not used for settlements. Moreover, not everyone can afford such products. In the meantime, the troy ounce remains the standard measure of weight, which means a significant contribution of traditions to the development of the economy in the world.

Despite the almost complete victory of the metric system, there are business segments in the world where old weight standards are preserved. Such standards include an ounce of gold, the history of which goes back to the times of Ancient Rome and the Middle Ages. A troy ounce of gold in grams is 31.1034807. In practice, this value is usually rounded up to 31.1035 or even 31.103 grams.

If you are going to work with gold on the stock exchange, you must take into account the use in world practice of this special measure of weight, which in quotes is denoted as “ounce” or, in short, “oz”. This is an international standard, also adopted in the banks of the planet and other financial institutions, and also often used by jewelers.

However, the metric system is also used in the financial segment - along with the use of the troy standard. For example, 1 kg (although in world practice the inscription “ounce” on a precious metal ingot is more common). For beginners, combining the two metric principles may seem complicated, but it takes some getting used to. How much a kilogram gold bar weighs in ounces is not so difficult to remember. To simplify the calculations, it should be remembered that in 1 - approximately 32.15 oz.

The preservation of this measure of weight in the third millennium is largely a tribute to tradition. Banking, stock exchange, jewelry business are conservative areas of activity that have retained their commitment to the classics. Carats and troy ounces are still used here to this day. There is even a certain aristocratic chic in this, similar to the use of English guineas in the auction business, from which, by historical standards, they have departed relatively recently.

However, it's not just about tradition. It should be noted that this specific measure of weight is quite convenient for working with precious metals: 1 ounce of gold is a quantity not as large as a kilogram, and not as small as a gram.

An interesting fact: if you round it up, it turns out that an ounce is about 30 times heavier than a gram and about 30 times lighter than a kilogram.

The use of the ounce as a measure of weight began in the era of Ancient Rome. She was one twelfth of the libra. How many grams in an ounce were there at that time? Historians have found the answer to this question: 327.45 grams. (Thus, an ounce of gold today is about 4 grams more than in ancient Roman). The ancient Romans divided this measure of weight into 2 semuncia. There were also smaller weight measures:

• semuncia - ½ oz;
• sicilicus - 1/4;
• sextuple - 1/6;
• scruple - 1/24;
• siliqua - 1/144.

Why did it happen that an ounce of gold today does not correspond in weight to the ancient Roman? To answer this question, you need to plunge into the Middle Ages, when not only in every country, but also in many duchies and counties, their own coins were issued. Modern man it is even difficult to imagine how difficult it was for medieval financiers - money changers!

When merchants from different countries and provinces came to a major fair, each brought their own money, which differed in weight and gold content. Often counterfeiters tried to sell money at fairs, and it happened that feudal lords (even kings!) deliberately reduced the content of gold and silver in coins. In addition, in the Middle Ages, people used old coins for a long time, which were several centuries old - including those of already disappeared states, because gold remained gold. True, the weight of such coins gradually decreased - after all, they were erased. And some cunning people even cut coins from precious metals.

Money changers - future bankers - solved the problem of this confusion by weighing the coins and determining the purity of the precious metal. It was they who introduced the unified Troy standard into use.

One of the largest fairs in the Middle Ages was held in the French province of Champagne, where famous wines were produced, as they are now. The fair in the city of Troyes (Troyes) was large, international and authoritative. It was here that in the 12th-14th centuries, money changers used the ounce as a standard, which weighed the same 31.1035 grams in terms of the modern metric system. This is how ounce from Troyes has become the most authoritative measure in the financial environment. And now, when they ask how much an ounce of gold weighs - how many grams are in it, they mean just the same troy standard.

In those days, this measure of weight was also used to measure other goods, such as grain. Subsequently, this measure was fixed in the financial environment, jewelry. The popularity of the ounce turned out to be so great that many gold mints were guided by it. For example, Spanish doubloons are the same ounces of gold. The English gold mint extended this standard to many countries that were formerly colonies. British Empire: this is how much, for example, American "eagles" and "buffaloes", "maple leaves" of Canada, as well as gold bars of Australia weigh.

It is sometimes mistakenly believed that the name of the troy ounce comes from the city of Troy. This is not so: the name is given by the city of Troyes - Troyes.

What other ounces are there?

Until the 19th century, the ounce was a popular measure of weight used in many areas. For example, we meet it on the pages of Dickens: it turns out that even jam was measured in ounces! And despite the establishment of the troy standard, one ounce per different countries could weigh differently.

You should be aware of several of the most popular "sisters" with which the Troy should not be confused:

As you can see, the weight of all these species fluctuates around 29–30 grams, which is explained by a common origin from the ancient Roman weight measure. And only the Dutch one stands out from the general series: this is because in the Netherlands in 1820, when switching to the metric principle, they decided to keep the usual name for the ounce and determined a special place for it in new system- She began to weigh 100 grams.

Thus, when answering the question, how many grams are in an ounce of gold, it is necessary to clarify which one is meant. However, now all species, except for the Troy, are obsolete. So when modern financiers talk about how much an ounce of gold costs, they always, in 100% of cases, mean, of course, the troy standard.

Exchange rate oz (ounce)

So, in the 21st century, the price of gold is still linked, as in Ancient Rome and medieval Europe, with an ounce. But of the many types of this measure of weight, only the troy is now used. So in everyday speech, for the sake of brevity, one often talks simply about the price of an ounce of gold.

What is the cost of an ounce of gold? This value is variable, changing. The price of a troy ounce of gold depends on the exchange rate, which is constantly changing. The cost of gold per ounce is formed using the London fixing operation. By tradition, twice a day, at 10.30 and 15.00, the new value of this precious metal is fixed.

The oz can be recognized in three modern currencies: the US dollar, the British pound and the euro. However, in exchange practice, it is mainly the US dollar that is used. Most often, when they are interested in how much this moment there is an ounce of gold - the price is called in American currency.

How much a troy ounce of gold costs is determined by the top five banks on the planet, analyzing the demand for the precious metal in the world market and the corresponding supply. The London fix includes Deutsche Bank, HSBC, Société Générale, Scotia Mocatta and Barclays Capital.

At the moment, stock trends show an increase in gold quotes. According to expert forecasts, this trend will continue for about another five years.

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1 US fl oz = 1.04084273078623 imperial fl oz

Initial value

Converted value

cubic meter cubic kilometer cubic decimeter cubic centimeter cubic millimeter liter exalitre petaliter teraliter gigaliter megaliter kiloliter hectoliter decalitre deciliter centiliter milliliter microliter nanoliter picoliter femtoliter attoliter cc drop barrel (petroleum) barrel US barrel British gallon US gallon British quart US quart British pint US pint British glass American glass (metric) glass British ounce fluid US ounce fluid British tablespoon Amer. tablespoon (meter) tablespoon UK dessert spoon amer. dessert spoon Brit. teaspoon amer. metric teaspoon teaspoon Brit. gill, gill american gill, gill british minim american minim british cubic mile cubic yard cubic foot cubic inch reg ton 100 cubic feet 100 cu. foot drachma cor (biblical unit) homer (biblical unit) baht (biblical unit) gin (biblical unit) cab (biblical unit) log (biblical unit) glass (Spanish) volume of the Earth Planck volume cubic astronomical unit cubic parsec cubic kiloparsec cubic megaparsec cubic gigaparsec barrel bucket shtof quarter wine bottle vodka bottle glass cup shkalik

Specific fuel consumption

Learn more about volume and units of measurement in recipes

General information

Volume is the space occupied by a substance or object. Also, the volume can denote the free space inside the container. Volume is a three-dimensional quantity, unlike, for example, length, which is two-dimensional. Therefore, the volume of flat or two-dimensional objects is zero.

Volume units

Cubic meter

The SI unit for volume is the cubic metre. The standard definition of one cubic meter is the volume of a cube with edges one meter long. Derived units such as cubic centimeters are also widely used.

Liter

The liter is one of the most commonly used units in the metric system. It is equal to the volume of a cube with edges 10 cm long:
1 liter = 10 cm × 10 cm × 10 cm = 1000 cubic centimeters

It's like 0.001 cubic meters. The mass of one liter of water at 4°C is approximately equal to one kilogram. Often milliliters are also used, equal to one cubic centimeter or 1/1000 of a liter. A milliliter is usually referred to as ml.

Jill

Gills are units of volume used in the United States to measure alcoholic beverages. One jill is five fluid ounces in the British imperial system, or four in the American. One American jill is equal to a quarter pint or half a cup. In Irish pubs, strong drinks are served in portions of a quarter of a jill, or 35.5 milliliters. The Scottish portions are smaller - one-fifth of a jill, or 28.4 milliliters. In England, until recently, servings were even smaller, only one-sixth of a jill or 23.7 milliliters. Now, it's 25 or 35 milliliters, depending on the rules of the institution. The hosts can decide for themselves which of the two servings to serve.

AMD

Dram, or drachma - a measure of volume, mass, as well as a coin. In the past, this measure was used in the pharmacy business and was equal to one teaspoon. Later, the standard volume of a teaspoon changed, and one spoon became equal to 1 and 1/3 drachmas.

Volumes in cooking

Liquids in cooking recipes are usually measured by volume. Bulk and dry products in the metric system, on the contrary, are measured by weight.

Tea spoon

The volume of a teaspoon varies different systems measurements. Initially, one teaspoon was a quarter of a tablespoon, then one third. It is the latter volume that is now used in the American system of measurement. This is approximately 4.93 milliliters. In American dietetics, the size of a teaspoon is 5 milliliters. In the UK it is common practice to use 5.9 milliliters, but some dietary guides and cookbooks use 5 milliliters. The volume of a teaspoon used in cooking is usually standardized in each country, but different sizes of spoons are used for eating.

Tablespoon

The volume of a tablespoon also varies depending on the geographic region. So, for example, in America, one tablespoon is three teaspoons, half an ounce, about 14.7 milliliters, or 1/16 of an American cup. Tablespoons in the UK, Canada, Japan, South Africa and New Zealand also contain three teaspoons. So, a metric tablespoon is 15 milliliters. A British tablespoon is 17.7 milliliters if a teaspoon is 5.9, and 15 if a teaspoon is 5 milliliters. Australian tablespoon - ⅔ ounce, 4 teaspoons, or 20 milliliters.

Cup

As a measure of volume, a cup is not as strictly defined as spoons. The volume of the cup can vary from 200 to 250 milliliters. A metric cup is 250 milliliters, while an American cup is slightly smaller, about 236.6 milliliters. In American dietetics, the volume of a cup is 240 milliliters. In Japan, cups are even smaller - only 200 milliliters.

Quarts and gallons

Gallons and quarts also have different sizes, depending on the geographic region where they are used. In the imperial system of measurement, one gallon is equal to 4.55 liters, and in the American system of measurements - 3.79 liters. Fuel is generally measured in gallons. A quart is equal to a quarter of a gallon and, respectively, 1.1 liters in the American system, and approximately 1.14 liters in the imperial system.

Pint

Pints ​​are used to measure beer even in countries where pints are not used to measure other liquids. In the UK, pints are used to measure milk and cider. A pint is equal to one eighth of a gallon. Some other countries in the Commonwealth of Nations and Europe also use pints, but since they depend on the definition of the gallon, and the gallon has a different volume depending on the country, pints are also not the same everywhere. An imperial pint is approximately 568.2 milliliters, while an American pint is 473.2 milliliters.

Fluid ounce

An imperial ounce is approximately equal to 0.96 US ounce. Thus, an imperial ounce contains approximately 28.4 milliliters, and an American ounce contains 29.6 milliliters. One US ounce is also approximately equal to six teaspoons, two tablespoons, and one eighth cup.

Volume calculation

Liquid displacement method

The volume of an object can be calculated using the liquid displacement method. To do this, it is lowered into a liquid of a known volume, a new volume is geometrically calculated or measured, and the difference between these two values ​​is the volume of the measured object. For example, if, when an object is lowered into a cup with one liter of water, the volume of liquid increases to two liters, then the volume of the object is one liter. In this way, only the volume of objects that do not absorb liquid can be calculated.

Formulas for calculating volume

Volume geometric shapes can be calculated using the following formulas:

Prism: the product of the area of ​​the base of the prism and the height.

Rectangular parallelepiped: product of length, width and height.

Cube: edge length to the third power.

Ellipsoid: product of semiaxes and 4/3π.

Pyramid: one third of the product of the area of ​​the base of the pyramid and the height. Post a question to TCTerms and within a few minutes you will receive an answer.

Beginning investors are often confused about weight because they don't know how many grams are in an ounce of gold. Having bought an ingot, a person suddenly receives more metal than he intended to receive. But is it?

This is because even in modern world The troy ounce system is used to determine the weight of gold. And they often confuse this ounce with an ordinary ounce, since grams are used in Russia.

Therefore, when buying in foreign markets, it is imperative to take into account the fact that a troy ounce weighs nine point seven percent more than avoirdupois.

An ounce of avoirdupois

The abbreviation oz or oz at - in the USA and a number of other countries, the main unit of weight is the pound avoirdupois (453.592 370 g). It consists of 16 oz. The weight of an ounce of avoirdupois is 28.35 g (28.349523125 g).

What is a troy ounce

This is the name of the unit for determining the weight of precious metals, which is included in the troy system of measures. Referred to as TR.OZ, or troy ounce, or simply ozt. This system was used by the Romans to measure gold, silver and gems. This system includes including pound and grain.

To understand the difference, you need to know what an ounce is.

So: One troy ounce will equal 31.1034768 grams. A pound is equal to 373.2417216g. or twelve troy ounces. A grain is equal to 1 in 480 ounces or 64.79891 milligrams.

One should not confuse the pound in England with the troy pound, since the latter is rarely used today. And you definitely need to separate the ordinary and troy ounce.

In the modern world, it is sometimes still measured in a troy ounce, especially in the financial sector, in jewelry stores, in the pharmacy and cosmetics sector. In order to calculate the metal in cans, a troy ounce is rounded off, and it turns out 31.103 grams.

In this case, it is not clear why to use an outdated system. Why can't you use more modern systems measures. Let's try to answer this question.

The most important feature troy ounce lies in its convenience of calculating the weight of precious metals to determine their price in banking and jewelry.

How to convert ounce to grams

This can be done with an online calculator. To find out how many grams are in ounces of gold, you need to enter the number of ounces there and the calculator will automatically convert it to grams. The troy ounce is a kind of royal symbol for measuring gold.

Some coins are equal in weight to exactly a troy ounce:

• US golden eagle
• US golden buffalo
• gold bar australia
• Panda China
• Krugerrand South Africa
• Maple Leaf Canada
• Philharmonic Australia

The ancient city of Troy in no way influenced the name of the troy ounce. Troy ounce was named after a small town in France - Troyes. This city became popular in the twelfth century, as fairs were held there with the participation of merchants from all over the world.

Previously, each country used its own system to measure the value of gold, which constantly created difficulties. At first, it was proposed to take the livre as a universal measure, the troy pound was included in the same system. Soon, the troy ounce became the main way to determine the measures of precious metals.

Gold as an ounce. What does this mean? What does this correspond to in our usual units? What is the history of this concept?

A troy ounce of gold in grams is 31.1034768. This unit of measure is also used for other valuable substances: silver, platinum and not only for them. Valuable ingredients in the cosmetics industry are also sometimes measured by weight using this measure.

Despite the fact that an ounce of gold in grams is not a whole, but rather a complex number, it has remained the de facto standard for many centuries. The beginning of this was laid a very long time ago, in the midst of the Middle Ages. In the twelfth century, in the French city of Troyes, fairs took place annually, which attracted a huge number of people, goods, money from various countries. There was a need for a standard unit of measure for precious metals, which would allow correct calculations when trading, despite the fact that coins were in circulation. different types and of various merits. In those years, banknotes did not yet exist, and coins were often valued based on their exact weight.

But this is not the only ounce of gold known in history. In grams, which was 29,860, Russia had its own troy ounce. There were other similar ones. There was, for example, an ounce of Maria Theresa, which was 31.1025 grams. However, in the gold business, the same unit was always adopted, which was used at the official level.

At one time, a whole system of weights was used, associated with a troy ounce.

The troy grain was 1/480 of it. Twelve of these units made up a pound. It was called troy, and should not be confused with the usual measure of weight of the same name.

Some states issue coins in our time, the weight of which is one troy ounce of gold, which in grams is exactly 31.1034768. As an example, minted in the USA.

Since 1919, the so-called fixing has been carried out in London, during which it is determined how much 1 ounce of gold costs. This event occurs twice a day. Representatives of the five largest banking organizations in the world come together and set the price in US dollars per ounce.

Beginning in the first half of the nineteenth century, the gold standard began to exist. Its essence boils down to the fact that each currency rigidly fixes its price ratio with gold. And all international settlements are thus brought to a single basis. This brings an element of stability to world economy, however, with the advent of the twentieth century and the outbreak of the First World War

This standard began to gradually become obsolete. The governments incurred huge expenses, and this greatly influenced the possibility of establishing a fixed price for gold. The world gradually began to be divided into several economic zones, which took as a basis one or another peg of their national currency. Zones of the American dollar and gold were formed. After this competition was finally won by the American currency unit.

Much has changed in the economy, but a troy ounce in grams is the same value - 31.1034768. It was used before and continues to exist further. When weighing gold, grams are practically not used. The age-old tradition continues in the ounce.