How to Calculate Gallons (with Pictures)

Table of contents:

How to Calculate Gallons (with Pictures)
How to Calculate Gallons (with Pictures)

Video: How to Calculate Gallons (with Pictures)

Video: How to Calculate Gallons (with Pictures)
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To calculate the volume of a container in gallons, you usually need to calculate it by converting the volume from another unit of measurement. You can calculate gallons from other units of measurement, which are used to describe volume.

Step

Part 1 of 3: Calculating Gallons from Other Imperial Units

Calculate Gallons Step 1
Calculate Gallons Step 1

Step 1. Convert cubic inches to gallons

There are 231 cubic inches in 1 gallon. To calculate the volume of a container in gallons if your volume is in cubic inches, divide the cubic inch value by 231.

  • Example: The volume of a tank is 3041 cubic inches. Find the volume in gallons.

    • 3042 cubic inches * (1 gallon / 231 cubic inches) = 3042 / 231 = 13.17 gallons
    • Final answer: 13, 17 gallons
Calculate Gallons Step 2
Calculate Gallons Step 2

Step 2. Calculate gallons of cubic feet

There are 7.48 gallons in 1 cubic foot. To find the volume of a container in gallons if your volume is in cubic feet, multiply the cubic foot value by 7.48.

  • Example: The volume of a tank is 3.89 cubic feet. Find the volume in gallons.

    • 3.89 cubic feet * (7.48 gallons / 1 cubic foot) = 3.89 * 7.48 = 29.1 gallons
    • Final answer: 29, 1 gallon
Calculate Gallons Step 3
Calculate Gallons Step 3

Step 3. Use cubic yards to find gallons

There are 201.97 gallons in 1 cubic yard. If the volume of your container is measured in cubic yards and you need to find the volume in gallons, multiply the cubic yard value by 201.97.

  • Example: The volume of a pond is 1.86 cubic yards. Calculate the volume in gallons.

    • 1.86 cubic yards * (201.97 gallons / 1 cubic yard) = 1.86 * 201.97 = 375.66 gallons
    • Final answer: 375, 66 gallons
Calculate Gallons Step 4
Calculate Gallons Step 4

Step 4. Calculate gallons of ounces

There are 128 ounces in 1 gallon. If the volume of your container is measured in ounces, calculate the volume of gallons the container has by dividing the ounce value by 128.

  • Example: The volume of a tank is 931 ounces. Calculate the volume of the same tank in gallons.

    • 931 ounces * (1 gallon / 128 ounces) = 931 / 128 = 7.27 gallons
    • Final answer: 7.27 gallons
Calculate Gallons Step 5
Calculate Gallons Step 5

Step 5. Count drams to gallons

There are 1023.99 dram in every 1 gallon. If the volume of your container is calculated in drams, but you need to know the volume in gallons, then convert drams to gallons by dividing the dram value by 1023.99.

  • Example: The volume of a tank is 3841, 1 dram. Convert this volume to gallons.

    • 3841, 1 dram * (1 gallon/1023.99 dram) = 3841, 1/1023.99 = 3.75 gallon
    • Final answer: 3.75 gallons
Calculate Gallons Step 6
Calculate Gallons Step 6

Step 6. Find gallons of cup

There are 16 cups in every 1 gallon. To calculate the gallon volume from the cup value, just divide the cup value by 16.

  • Example: The volume of a container is 86.23 cups. Calculate the gallon value.

    • 86.23 cups * (1 gallon / 16 cup) = 86, 23 / 16 = 5.39 gallons
    • Final answer: 5, 39 gallons
Calculate Gallons Step 7
Calculate Gallons Step 7

Step 7. Convert pints to gallons

There are 8 pints in every 1 gallon. To find the volume of a container in gallons if your volume is in pints, divide the volume (in pints) by 8.

  • Example: The volume of a tank is 72.99 pints. Find the gallon value.

    • 72.99 pints = (1 gallon/8 pint) = 72.99/8 = 9.12 gallons
    • Final answer: 9, 12 gallons
Calculate Gallons Step 8
Calculate Gallons Step 8

Step 8. Use quarts to find gallons

There are 4 quarts in every 1 gallon. Calculate the volume of a container in gallons if your volume is calculated in quarts by dividing the volume (in quarts) by 4.

  • Example: The volume of a tank is 54.31 quarts. Convert this value to gallons.

    • 54, 31 quart * (1 gallon / 4 quart) = 54, 31 / 4 = 13.58 gallon
    • Final answer: 13.58 gallons

Part 2 of 3: Calculating Gallons from Metric

Calculate Gallons Step 9
Calculate Gallons Step 9

Step 1. Calculate gallons from cubic meters

There are 264.17 gallons in every 1 cubic meter. If the volume of your container is measured in cubic meters, you can calculate the volume of the container by multiplying its volume (in cubic meters) by 264.17.

  • Example: The volume of a pond is 8.12 cubic meters. Find the volume in gallons.

    • 8, 12 cubic meters * (264, 17 gallons / 1 cubic meter) = 8, 12 * 264, 17 = 2145, 06 gallons
    • Final answer: 2145, 06 gallons
Calculate Gallons Step 10
Calculate Gallons Step 10

Step 2. Convert cubic centimeters to gallons

There are 3785.41 cubic centimeters in 1 gallon. To find the volume of a container in gallons if your volume is in cubic centimeters, divide the cubic centimeter value by 3785, 41.

  • Example: The volume of a tank is 7982.09 cubic centimeters. Convert this value to gallons.

    • 7982.09 cubic centimeters * (1 gallon / 3785.41 cubic centimeters) = 7982.09 / 3785.41 = 2.11 gallons
    • Final answer: 2, 11 gallons
Calculate Gallons Step 11
Calculate Gallons Step 11

Step 3. Find gallons from liters

There are 3.79 liters in every 1 gallon. If the volume of your container is calculated in liters but you want to convert that value to gallons, then convert by dividing the liter value by 3.79.

  • Example: The volume of a tank is 8.3 liters. Calculate the volume of the same tank in gallons.

    • 8.3 liters * (1 gallon / 3.79 liters) = 8.3 / 3.79 = 2.19 gallons
    • Final answer: 2.19 gallons
Calculate Gallons Step 12
Calculate Gallons Step 12

Step 4. Calculate gallons from milliliters

There are 3785.41 milliliters in every 1 gallon. Calculate the volume of a container in gallons by dividing the number of milliliters by 3785, 41.

  • Note that the value of a milliliter in one gallon is the same as the value of a cubic centimeter in a gallon.
  • Example: The volume of a tank is 9877, 1 milliliter. Find the volume in gallons.

    • 9877, 1 milliliter * (1 gallon / 3785, 31 milliliters) = 9877, 1/3785, 31 = 2.61 gallons
    • Final answer: 2.61 gallons

Part 3 of 3: Calculating Volume

Calculate Gallons Step 13
Calculate Gallons Step 13

Step 1. Calculate the volume of the rectangular prism

The volume of a rectangular prism can be calculated by multiplying the length of a container by its width and height. Convert the answers you get to gallons using the instructions given in this article.

  • Example: A rectangular tank is 104 inches long, 52 inches wide, and 98 inches high. Calculate the volume in gallons.

    • Volume = P * L * T
    • Volume = 104 inches * 52 inches * 98 inches
    • Volume = 529984 cubic inches
    • 529984 cubic inches * (1 gallon / 231 cubic inches) = 529984 / 231 = 2294, 3 gallons
    • Final answer: 2294, 3 gallons
Calculate Gallons Step 14
Calculate Gallons Step 14

Step 2. Find the volume of the cylinder

The volume of the cylinder can be calculated by multiplying the value of "pi" by the square of the radius of the base of the container and the height of the container. Once you've got your answer, you'll need to convert it to gallons.

  • Example: A cylindrical tank has a height of 893 cm and a base with a radius of 271 cm. Calculate the volume in gallons.

    • Volume = * R2 * T
    • Volume = 3, 14 * 2712 * 893 cm
    • Volume = 3.14 * 73441 cm squared * 893 cm
    • Volume = 205930032, 82 cubic centimeters
    • 205930032, 82 cubic centimeters * (1 gallon / 3785, 41 cubic centimeters) = 205930032, 82 / 3785, 41 = 54400, 88 gallons
    • Final answer: 54400, 88 gallons
Calculate Gallons Step 15
Calculate Gallons Step 15

Step 3. Calculate the volume of the cone

Calculate the volume of the cone by multiplying the value of "pi" by the height of the cone and the radius of the square of the base. Divide the product by 3. When you're done, convert your final answer to gallons.

  • Example: A conical container has a height of 2.3 feet and a base with a radius of 1.8 feet. Calculate the volume in gallons.

    • Volume = (1/3) * * R2 * T
    • Volume = (1/3) * 3, 14 * 1, 8 2 feet * 2, 3 feet
    • Volume = (1/3) * 3, 14 * 3, 24 feet squared * 2, 3 feet
    • Volume = 7.8 cubic feet
    • 7.8 cubic feet * (7.48 gallons / 1 cubic foot) = 7.8 * 7.48 = 58.34 gallons
    • Final answer: 58, 34 gallons
Calculate Gallons Step 16
Calculate Gallons Step 16

Step 4. Find the volume of a regular pyramid

Find the volume of a regular pyramid by multiplying the area of the base by the height of the pyramid. Divide this multiplication value by 3. Once you have your final value in cubic units, convert the answer to gallons.

  • Example: A pyramid-shaped container has a height of 1.92 meters and a base with a length of 2.3 meters and a width of 2.1 meters. Calculate the volume in gallons.

    • Volume = #**Volume = (1/3) * Area of Base * T
    • Volume = (1/3) * (L * L) * T
    • Volume = (1/3) * (2.3 m * 2, 1 m) * 1.92 m
    • Volume = 3.09 cubic meters
    • 3.09 cubic meters * (264.17 gallons / 1 cubic meter) = 3.09 * 264, 17 = 816.29 gallons
    • Final answer: 816, 29 gallons

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