Ounces to Gallons [ water ]  Converter (oz to gal [ water ] )
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Ounces to Gallons [water]
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Convert Gallons to Ounces (gal to oz) [water]▶

Conversion Table

ounces to gallons
ozgal
10 oz 0.0749 gal
20 oz 0.1498 gal
30 oz 0.2247 gal
40 oz 0.2996 gal
50 oz 0.3745 gal
60 oz 0.4493 gal
70 oz 0.5242 gal
80 oz 0.5991 gal
90 oz 0.674 gal
100 oz 0.7489 gal
110 oz 0.8238 gal
120 oz 0.8987 gal
130 oz 0.9736 gal
140 oz 1.0485 gal
150 oz 1.1234 gal
160 oz 1.1983 gal
170 oz 1.2732 gal
180 oz 1.348 gal
190 oz 1.4229 gal
200 oz 1.4978 gal

How to convert

1 ounce (oz) = 0.007489152 gallon (gal). Ounce (oz) is a unit of Weight used in Standard system. Gallon (gal) is a unit of Volume used in Cooking system. Please note this is weight to volume conversion, this conversion is valid only for pure water at temperature 4 °C.
1 US qt = 0.946352946 liters = 0.946352946 kg of pure water at temperature 4 °C.
US oz = 28.349523125 g
US fl oz = 29.5735295625 ml (milliliters) = 29.5735295625 g (grams) of pure water at temperature 4 °C.
US cup = 8 fl oz = 236.5882365 ml (milliliters) = 236.5882365 g (grams) of pure water at temperature 4 °C.

Definition of the Ounce

The ounce is defined differently in different systems of measurement. The most common ounce is the international avoirdupois ounce, which is equal to 28.349523125 grams or 437.5 grains. This is the ounce that is used for most purposes, such as measuring food, postal items, fabric, paper and boxing gloves. The avoirdupois ounce is one-sixteenth of an avoirdupois pound, which is defined as 7000 grains.

Another ounce is the international troy ounce, which is equal to 31.1034768 grams or 480 grains. This is the ounce that is used for measuring precious metals and gems, such as gold, silver, platinum and diamonds. The troy ounce is one-twelfth of a troy pound, which is defined as 5760 grains.

A third ounce is the apothecaries’ ounce, which is also equal to 480 grains, but it is divided into eight drams instead of twelve pennyweights like the troy ounce. The apothecaries’ ounce is used for measuring medicines and drugs.

There are also other historical or regional ounces that have different values, such as the Spanish ounce, the French ounce, the Portuguese ounce, the Roman/Italian ounce, the Dutch metric ounce and the Chinese metric ounce.

How to Convert Ounces

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

  • To convert ounces to pounds, divide by 16. For example, 32 oz = 32/16 = 2 lb.
  • To convert ounces to tons (short), divide by 32000. For example, 64000 oz = 64000/32000 = 2 tons.
  • To convert ounces to grams, multiply by 28.349523125. For example, 4 oz = 4 x 28.349523125 = 113.3980925 g.
  • To convert ounces to kilograms, multiply by 0.028349523125. For example, 8 oz = 8 x 0.028349523125 = 0.226796185 kg.
  • To convert ounces to milligrams, multiply by 28349.523125. For example, 2 oz = 2 x 28349.523125 = 56699.04625 mg.
  • To convert ounces to micrograms, multiply by 28349523.125. For example, 1 oz = 1 x 28349523.125 = 28349523.125 µg.

Where Ounces are Used

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

  • In the United States, ounces are used for measuring packaged foods and food portions, postal items, areal density of fabric and paper, boxing gloves and firearms.
  • In the United Kingdom, ounces are used for measuring food portions and ingredients, woolen cloth and gold bullion.
  • In Canada, ounces are used for measuring food portions and ingredients, precious metals and gems and liquor bottles.
  • In Australia and New Zealand, ounces are used for measuring food portions and ingredients, precious metals and gems and baby weights.
  • In China, ounces are used for measuring tea leaves and pearls.
  • In India, ounces are used for measuring gold ornaments and silk fabrics.

History of Ounces

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

  • The uncia was an ancient Roman unit of measurement that was one-twelfth of a Roman pound or libra. It was also used as a unit of volume and area.
  • The uncia was borrowed into Old English as ynsan or yndsan from a Vulgar Latin form with ts for c before i (palatalization). This became inch in modern English.
  • The uncia was also borrowed into Middle English through Anglo-Norman and Middle French as unce, once or ounce. This became ounce in modern English.
  • The ounce was divided into different fractions and multiples, such as the dram, the pennyweight, the scruple and the mark.
  • The ounce was used in different systems of measurement, such as the imperial system, the US customary system, the troy system and the apothecaries’ system.
  • The ounce was standardized by international agreements, such as the international yard and pound agreement of 1959 and the international troy ounce agreement of 1958.

Example Conversions of Ounces to Other Units

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

  • 1 oz = 0.0625 lb
  • 1 oz = 0.00003125 ton
  • 1 oz = 28.349523125 g
  • 1 oz = 0.028349523125 kg
  • 1 oz = 28349.523125 mg
  • 1 oz = 28349523.125 µg
  • 1 oz = 0.911458333 troy oz
  • 1 oz = 0.911458333 apothecaries’ oz
  • 1 oz = 1.041666667 Spanish oz
  • 1 oz = 0.927272727 French oz

Gallons: A Unit of Volume

Gallons are a unit of volume that are used to measure liquids, such as water, milk, oil, wine, etc. They are also used to measure some dry goods, such as grains, fruits, nuts, etc. They are different from cups, which are a smaller unit of volume. They are also different from liters, which are a larger unit of volume. They are also different from barrel of oil equivalent (BOE), which is a unit of energy based on the approximate energy released by burning one barrel of crude oil.

Definition of Gallons

A gallon is defined as a unit of liquid capacity in both the US customary and imperial systems of measurement. However, the size of a gallon varies depending on the type of gallon used:

  • A US liquid gallon is equal to 3.785 liters or 0.833 UK gallons in the metric system. It is equivalent to 231 cubic inches or 128 fluid ounces in the US customary system.
  • A US dry gallon is equal to 4.405 liters or 0.969 UK gallons in the metric system. It is equivalent to 268.8 cubic inches or 148.9 fluid ounces in the US customary system.
  • A UK gallon is equal to 4.546 liters or 1.2 US liquid gallons in the metric system. It is equivalent to 277.4 cubic inches or 160 fluid ounces in the imperial system.

History of Gallons

The origin of the term gallon as a unit of measure is uncertain, but it may have derived from the Old French word galon, which means a large liquid measure. Gallons have been used since ancient times to store and transport various liquids and dry goods. The size and shape of gallons varied depending on the type and quantity of the goods, the availability of materials, and the customs of different regions and countries.

The use of gallons as a unit of measure dates back to the medieval times, when the European system of measurement was established. The standard size of these gallons was based on the wine gallon, which was originally defined as the volume of eight pounds of wine at 62 °F. The gallon was convenient for measuring and dividing larger amounts of liquids and dry goods.

The use of gallons as a unit of measure continued until the 20th century, when the metric system of measurement was adopted in most countries. The gallon was gradually replaced by units such as liters, kilograms, etc. However, some countries and regions still use gallons for certain types of liquids and dry goods, especially in the United States and the United Kingdom and its former colonies.

How to Convert Gallons

To convert gallons to other units of volume, one can use the following formulas:

  • To convert US liquid gallons to liters: multiply by 3.785

  • To convert US liquid gallons to cubic inches: multiply by 231

  • To convert US liquid gallons to fluid ounces: multiply by 128

  • To convert US liquid gallons to UK gallons: multiply by 0.833

  • To convert US liquid gallons to BOE: divide by 5

  • To convert US dry gallons to liters: multiply by 4.405

  • To convert US dry gallons to cubic inches: multiply by 268.8

  • To convert US dry gallons to fluid ounces: multiply by 148.9

  • To convert US dry gallons to UK gallons: multiply by 0.969

  • To convert US dry gallons to BOE: divide by 4.6

  • To convert UK gallons to liters: multiply by 4.546

  • To convert UK gallons to cubic inches: multiply by 277.4

  • To convert UK gallons to fluid ounces: multiply by 160

  • To convert UK gallons to US liquid gallons: multiply by 1.2

  • To convert UK gallons to BOE: divide by 6.1

Where Gallons are Used

Gallons are mainly used in some countries and regions that use the US customary system or the imperial system of measurement. They are often used for measuring and adding liquids such as water, milk, oil, wine, etc., and dry goods such as grains, fruits, nuts, etc., to recipes.

In some countries that use the metric system of measurement, such as Canada and Australia, gallons are not commonly used or recognized. Instead, they use units such as liters, kilograms, etc.

Example Conversions of Gallons to Other Units

Here are some examples of converting gallons to other units of volume:

  • 1 US liquid gallon = 3.785 liters

  • 2 US liquid gallons = 462 cubic inches

  • 3 US liquid gallons = 384 fluid ounces

  • 4 US liquid gallons = 3.332 UK gallons

  • 5 US liquid gallons = 1 BOE

  • 1 US dry gallon = 4.405 liters

  • 2 US dry gallons = 537.6 cubic inches

  • 3 US dry gallons = 446.7 fluid ounces

  • 4 US dry gallons = 3.876 UK gallons

  • 5 US dry gallons = 1.087 BOE

  • 1 UK gallon = 4.546 liters

  • 2 UK gallons = 554.8 cubic inches

  • 3 UK gallons = 480 fluid ounces

  • 4 UK gallons = 4.8 US liquid gallons

  • 5 UK gallons = 0.82 BOE.

The US gallon is equal to 3.785411784 liters and defined as 231 cubic inches.



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