Gallon (gal) Volume Conversion Calculator

Gallon Conversion Calculator

Enter a value in gallons below to convert to another unit of volume.

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What Is a Gallon?

A gallon is a unit used to measure volume.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Background and Origin

The gallon was originally used as the unit of fluid volume for measuring wine and ale in England. The gallon measurement used for wine was slightly different than that used for ale, and is equivalent to the US liquid gallon measurement in use today. This is the reason that sometimes the US liquid gallon is referred to as the wine gallon.

You might also be interested in our volume calculator.

How Much Is a Gallon?

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.^[1] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

How Much Does a Gallon Weigh?

Since the gallon is a volumetric unit of measure, its weight will vary depending on the density of its contents. For instance, one gallon of water weighs 8.345 pounds, while one gallon of milk weighs 8.6 pounds.

How to Convert Gallons

To convert gallons to another unit of volume, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.^[2]

You can find the conversion factors for gallons in the conversion table below.

Then, multiply the volume measurement by the conversion factor to find the equivalent value in the desired unit of measurement.

gallons × conversion factor = result

You can also use a calculator, such as one of the converters below, for the conversion.

Gallon Conversion Table

Common gallon values and equivalent imperial and metric volume measurements
gallons	quarts	pints	cups	fluid ounces	tablespoons	teaspoons	cubic inches	cubic feet	cubic yards	liters	milliliters	cubic centimeters	cubic meters
1 gal	4 qt	8 pt	16 c	128 fl oz	256 tbsp	768 tsp	231 in³	0.133681 ft³	0.004951 yd³	3.785412 L	3,785 mL	3,785 cm³	0.003785 m³
2 gal	8 qt	16 pt	32 c	256 fl oz	512 tbsp	1,536 tsp	462 in³	0.267361 ft³	0.009902 yd³	7.570824 L	7,571 mL	7,571 cm³	0.007571 m³
3 gal	12 qt	24 pt	48 c	384 fl oz	768 tbsp	2,304 tsp	693 in³	0.401042 ft³	0.014853 yd³	11.356235 L	11,356 mL	11,356 cm³	0.011356 m³
4 gal	16 qt	32 pt	64 c	512 fl oz	1,024 tbsp	3,072 tsp	924 in³	0.534722 ft³	0.019805 yd³	15.141647 L	15,142 mL	15,142 cm³	0.015142 m³
5 gal	20 qt	40 pt	80 c	640 fl oz	1,280 tbsp	3,840 tsp	1,155 in³	0.668403 ft³	0.024756 yd³	18.927059 L	18,927 mL	18,927 cm³	0.018927 m³
6 gal	24 qt	48 pt	96 c	768 fl oz	1,536 tbsp	4,608 tsp	1,386 in³	0.802083 ft³	0.029707 yd³	22.712471 L	22,712 mL	22,712 cm³	0.022712 m³
7 gal	28 qt	56 pt	112 c	896 fl oz	1,792 tbsp	5,376 tsp	1,617 in³	0.935764 ft³	0.034658 yd³	26.497882 L	26,498 mL	26,498 cm³	0.026498 m³
8 gal	32 qt	64 pt	128 c	1,024 fl oz	2,048 tbsp	6,144 tsp	1,848 in³	1.069444 ft³	0.039609 yd³	30.283294 L	30,283 mL	30,283 cm³	0.030283 m³
9 gal	36 qt	72 pt	144 c	1,152 fl oz	2,304 tbsp	6,912 tsp	2,079 in³	1.203125 ft³	0.04456 yd³	34.068706 L	34,069 mL	34,069 cm³	0.034069 m³
10 gal	40 qt	80 pt	160 c	1,280 fl oz	2,560 tbsp	7,680 tsp	2,310 in³	1.336806 ft³	0.049511 yd³	37.854118 L	37,854 mL	37,854 cm³	0.037854 m³
11 gal	44 qt	88 pt	176 c	1,408 fl oz	2,816 tbsp	8,448 tsp	2,541 in³	1.470486 ft³	0.054462 yd³	41.63953 L	41,640 mL	41,640 cm³	0.04164 m³
12 gal	48 qt	96 pt	192 c	1,536 fl oz	3,072 tbsp	9,216 tsp	2,772 in³	1.604167 ft³	0.059414 yd³	45.424941 L	45,425 mL	45,425 cm³	0.045425 m³
13 gal	52 qt	104 pt	208 c	1,664 fl oz	3,328 tbsp	9,984 tsp	3,003 in³	1.737847 ft³	0.064365 yd³	49.210353 L	49,210 mL	49,210 cm³	0.04921 m³
14 gal	56 qt	112 pt	224 c	1,792 fl oz	3,584 tbsp	10,752 tsp	3,234 in³	1.871528 ft³	0.069316 yd³	52.995765 L	52,996 mL	52,996 cm³	0.052996 m³
15 gal	60 qt	120 pt	240 c	1,920 fl oz	3,840 tbsp	11,520 tsp	3,465 in³	2.005208 ft³	0.074267 yd³	56.781177 L	56,781 mL	56,781 cm³	0.056781 m³
16 gal	64 qt	128 pt	256 c	2,048 fl oz	4,096 tbsp	12,288 tsp	3,696 in³	2.138889 ft³	0.079218 yd³	60.566589 L	60,567 mL	60,567 cm³	0.060567 m³
17 gal	68 qt	136 pt	272 c	2,176 fl oz	4,352 tbsp	13,056 tsp	3,927 in³	2.272569 ft³	0.084169 yd³	64.352 L	64,352 mL	64,352 cm³	0.064352 m³
18 gal	72 qt	144 pt	288 c	2,304 fl oz	4,608 tbsp	13,824 tsp	4,158 in³	2.40625 ft³	0.08912 yd³	68.137412 L	68,137 mL	68,137 cm³	0.068137 m³
19 gal	76 qt	152 pt	304 c	2,432 fl oz	4,864 tbsp	14,592 tsp	4,389 in³	2.539931 ft³	0.094072 yd³	71.922824 L	71,923 mL	71,923 cm³	0.071923 m³
20 gal	80 qt	160 pt	320 c	2,560 fl oz	5,120 tbsp	15,360 tsp	4,620 in³	2.673611 ft³	0.099023 yd³	75.708236 L	75,708 mL	75,708 cm³	0.075708 m³

References

National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf

National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion