Gallons to Cubic Inches Converter (gal to cu in)
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Convert Cubic Inches to Gallons (cu in to gal) ▶

Conversion Table

gallons to cubic inches
galcu in
1 gal 231 cu in
2 gal 462 cu in
3 gal 693 cu in
4 gal 924 cu in
5 gal 1155 cu in
6 gal 1386 cu in
7 gal 1617 cu in
8 gal 1848 cu in
9 gal 2079 cu in
10 gal 2310 cu in
11 gal 2541 cu in
12 gal 2772 cu in
13 gal 3003 cu in
14 gal 3234 cu in
15 gal 3465 cu in
16 gal 3696 cu in
17 gal 3927 cu in
18 gal 4158 cu in
19 gal 4389 cu in
20 gal 4620 cu in

How to convert

1 gallon (gal) = 231 cubic inch (cu in). Gallon (gal) is a unit of Volume used in Standard system. Cubic Inch (cu in) is a unit of Volume used in Standard system.

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.

Cubic Inches - A Unit of Volume

Definition of the Cubic Inch

A cubic inch (symbol in3 or cu in) is a unit of volume in the imperial and US customary (non-metric) units systems. It is the volume of a cube with each of its three dimensions (length, width, and height) being one inch (0.0254 meter) in length.

One cubic inch is equal to 0.000578704 cubic feet, 0.037037 cubic yards, or 0.016387064 liters.

History of the Cubic Inch

The cubic inch is derived from the inch, which is an ancient unit of length that was based on the length of a human thumb. The inch was originally divided into 12 lines, and later into 16 digits or 4 barleycorns. The inch was used in many different systems of measurement, such as the Roman, Anglo-Saxon, English, and Scottish systems. The inch was standardized by King Edward II of England in 1324 as the length of three barleycorns laid end to end. The current definition of the inch, adopted in 1959, is based on the international yard, which is defined as 0.9144 meter.

The cubic inch was first used as a unit of volume for measuring solid objects in England in the 14th century. It was also used for measuring other materials and substances, such as wood, stone, metal, water, and air. The cubic inch was adopted as a standard unit of measure in the imperial system in 1824, along with other units such as the gallon, the bushel, and the barrel. The cubic inch was also used in the US customary system, which is similar but not identical to the imperial system. The cubic inch is still widely used today for various purposes, such as engineering, commerce, and everyday life.

How to Convert Cubic Inches

To convert cubic inches to other units of volume, you need to multiply or divide by the appropriate conversion factor. Here are some common conversion factors and examples:

  • To convert cubic inches to cubic feet, multiply by 0.000578704.
    • Example: 2 in3 × 0.000578704 = 0.001157408 ft3
  • To convert cubic inches to cubic yards, multiply by 0.000037037.
    • Example: 2 in3 × 0.000037037 = 0.000074074 yd3
  • To convert cubic inches to liters, multiply by 0.016387064.
    • Example: 2 in3 × 0.016387064 = 0.032774128 L
  • To convert cubic inches to milliliters or cubic centimeters, multiply by 16.387064.
    • Example: 2 in3 × 16.387064 = 32.774128 mL or cm3
  • To convert cubic inches to gallons (US liquid), multiply by 0.00432900433.
    • Example: 2 in3 × 0.00432900433 = 0.00865800866 gal
  • To convert cubic inches to bushels (US), multiply by 0.000465025413.
    • Example: 2 in3 × 0.000465025413 = 0.000930050826 bu

To convert other units of volume to cubic inches, you need to divide by the appropriate conversion factor. Here are some common conversion factors and examples:

  • To convert cubic feet to cubic inches, divide by 0.000578704.
    • Example: 0.001157408 ft3 ÷ 0.000578704 = 2 in3
  • To convert cubic yards to cubic inches, divide by 0.000037037.
    • Example: 0.000074074 yd3 ÷ 0.000037037 = 2 in3
  • To convert liters to cubic inches, divide by 0.016387064.
    • Example: 0.032774128 L ÷ 0.016387064 = 2 in3
  • To convert milliliters or cubic centimeters to cubic inches, divide by 16.387064.
    • Example: 32.774128 mL or cm3 ÷ 16.387064 = 2 in3
  • To convert gallons (US liquid) to cubic inches, divide by 0.00432900433.
    • Example: 0.00865800866 gal ÷ 0.00432900433 = 2 in3
  • To convert bushels (US) to cubic inches, divide by 0.000465025413.
    • Example: 0.000930050826 bu ÷ 0.000465025413 = 2 in3

Where Cubic Inches are Used

Cubic inches are used for measuring various materials and substances in different countries and applications.

Some examples are:

  • In the United States and the United Kingdom, cubic inches are used for measuring the volume of small objects, such as jewelry, coins, dice, and marbles.
  • In the United States and Canada, cubic inches are used for measuring the engine displacement of automobiles, motorcycles, and aircraft.
  • In the United States and the United Kingdom, cubic inches are used for measuring the volume of air in pneumatic tools, tires, balloons, and airbags.
  • In the United States and the United Kingdom, cubic inches are used for measuring the volume of water in aquariums, fountains, and pools.
  • In the United States and the United Kingdom, cubic inches are used for measuring the volume of soil in gardening, landscaping, and farming.

Example Conversions of Cubic Inches to Other Units

Here are some example conversions of cubic inches to other units of volume:

  • 1 in3 = 0.000578704 ft3
  • 1 in3 = 0.000037037 yd3
  • 1 in3 = 0.016387064 L
  • 1 in3 = 16.387064 mL or cm3
  • 1 in3 = 0.00432900433 gal
  • 1 in3 = 0.000465025413 bu
  • 1 in3 = 0.0001030715 bbl
Cubic inches also can be marked as in3.



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