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Facts about Fluid Ounce
Basic facts: A fluid ounce [symbol: fl oz] is a unit of volume in the United States customary and imperial systems of measurement. The United States fluid ounce is 1/16 of a US fluid pint, 1/128 of a US liquid gallon, which is equivalent to 29.57 mL. The imperial fluid ounce is 1/20 of an imperial pint, and 1/160 of an imperial gallon, which is equivalent to 28.4 mL.
History: The fluid ounce was initially based on the volume occupied by one ounce [weight] of a given liquid like water or wine, accordingly varying based on the system being used. In 1824, the imperial gallon was represented as the volume of ten pounds of water at a temperature of 16.7°C. The definition of the imperial gallon was later changed to be equivalent to 4.54609 liters, which made the imperial fluid ounce equivalent to exactly 28.4130625 mL.
Initially, the United States fluid ounce was based on the wine gallon used in England before 1824. In 1959 after the adoption of the international inch, the U.S. fluid ounce became equivalent to exactly 29.5735295625 mL.
Use: As the name shows, the fluid ounce is generally used as a measurement of liquid volume. As one of the many measurements of volume, it is mainly used in the United States and the United Kingdom.
Facts about Gallon
Basic Facts: The gallon is a unit of volume in the United States’ customary units and imperial units. 3 distinct versions are in current use:
– The imperial gallon [imp gal], defined as 4.54609 litres, which is or was used in Australia, Canada, the United Kingdom, Ireland, and some Caribbean countries;
– The US gallon [US gal] is defined as 231 cubic inches [exactly 3.785411784 L], which is used in the US and some Latin American and Caribbean countries;
– The US dry gallon “usdrygal” is defined as 1/8 US bushel [exactly 4.40488377086 L].
There are four quarts in a gallon and eight pints in a gallon, which have dissimilar volumes in different systems. For both US [liquid] and an imperial gallon, the IEEE standard symbol is gal.
History: The term most immediately comes from galun, in Old Northern French – galon, but the usage was common in several languages, for instance, “gęllet” [means bowl] in Old English and “jale” in Old French.
The gallon was formed as the base of systems for measuring wine and beer in England. The sizes of gallons used in these two systems differed from each other: 1) One was based on the wine gallon [equal in size to the US gallon], 2) The other one is either the ale gallon or the larger imperial gallon.
By the end of the 18th century, there were three definitions of the gallon in common use:
1. The corn gallon, or Winchester gallon, of about 268.8 cubic inches (≈ 4.405 L) – The corn or dry gallon is used [along with the dry quart and pint] in the US for grain and different dry commodities.
2. The wine gallon, or Queen Anne’s gallon, which was 231 cubic inches [49] (≈ 3.785 L) – The wine, fluid, or liquid gallon has been the standard US gallon since the early 19th century.
3. The ale gallon of 282 cubic inches (≈ 4.622 L). – Britain adopted a close approximation, in 1824, to the ale gallon known as the imperial gallon and abolished all other gallons in favor of it.
Use: Gallons are often utilized for larger containers In the United States (US), such as one-gallon cartons of milk or half-gallon tubs of ice cream. In the US, as well as some of its territories gallons are also widely used in fuel economy expression. The US gallon is utilized more frequently than the imperial gallon. Most countries around the world use liters when referencing fuel.
How many gallons in an ounce?
1 ounce is equivalent to 0.0078125 gallons. Use 0.0078125 as the factor to convert ounces to gallon. Below find some popular ounces to gallons conversion questions:
- How many gallons in 2 ounces? 2 ounces x 0.0078125 = 0.01563 number gallons
- How many gallons in 3 ounces? 3 ounces x 0.0078125 = 0.02344 number gallons
- How many gallons in 5 ounces? 5 ounces x 0.0078125 = 0.03906 number gallons
- How many gallons in 10 ounces? 10 ounces x 0.0078125 = 0.07813 number gallons
- How many gallons in 15 ounces? 15 ounces x 0.0078125 = 0.11719 number gallons
- How many gallons in 20 ounces? 20 ounces x 0.0078125 = 0.15625 number gallons
- How many gallons in 50 ounces? 50 ounces x 0.0078125 = 0.39063 number gallons
- How many gallons in 100 ounces? 100 ounces x 0.0078125 = 0.78125 number gallons
- How many gallons in 1000 ounces? 1000 ounces x 0.0078125 = 7.8125 number gallons
Ounces to Gallons Conversion Chart
| Ounces (fl oz) | Gallons | Ounces (fl oz) | Gallons | Ounces (fl oz) | Gallons | Ounces (fl oz) | Gallons |
|---|---|---|---|---|---|---|---|
| 1 | 0.0078125 | 26 | 0.203125 | 51 | 0.3984375 | 76 | 0.59375 |
| 2 | 0.015625 | 27 | 0.2109375 | 52 | 0.40625 | 77 | 0.6015625 |
| 3 | 0.0234375 | 28 | 0.21875 | 53 | 0.4140625 | 78 | 0.609375 |
| 4 | 0.03125 | 29 | 0.2265625 | 54 | 0.421875 | 79 | 0.6171875 |
| 5 | 0.0390625 | 30 | 0.234375 | 55 | 0.4296875 | 80 | 0.625 |
| 6 | 0.046875 | 31 | 0.2421875 | 56 | 0.4375 | 81 | 0.6328125 |
| 7 | 0.0546875 | 32 | 0.25 | 57 | 0.4453125 | 82 | 0.640625 |
| 8 | 0.0625 | 33 | 0.2578125 | 58 | 0.453125 | 83 | 0.6484375 |
| 9 | 0.0703125 | 34 | 0.265625 | 59 | 0.4609375 | 84 | 0.65625 |
| 10 | 0.078125 | 35 | 0.2734375 | 60 | 0.46875 | 85 | 0.6640625 |
| 11 | 0.0859375 | 36 | 0.28125 | 61 | 0.4765625 | 86 | 0.671875 |
| 12 | 0.09375 | 37 | 0.2890625 | 62 | 0.484375 | 87 | 0.6796875 |
| 13 | 0.1015625 | 38 | 0.296875 | 63 | 0.4921875 | 88 | 0.6875 |
| 14 | 0.109375 | 39 | 0.3046875 | 64 | 0.5 | 89 | 0.6953125 |
| 15 | 0.1171875 | 40 | 0.3125 | 65 | 0.5078125 | 90 | 0.703125 |
| 16 | 0.125 | 41 | 0.3203125 | 66 | 0.515625 | 91 | 0.7109375 |
| 17 | 0.1328125 | 42 | 0.328125 | 67 | 0.5234375 | 92 | 0.71875 |
| 18 | 0.140625 | 43 | 0.3359375 | 68 | 0.53125 | 93 | 0.7265625 |
| 19 | 0.1484375 | 44 | 0.34375 | 69 | 0.5390625 | 94 | 0.734375 |
| 20 | 0.15625 | 45 | 0.3515625 | 70 | 0.546875 | 95 | 0.7421875 |
| 21 | 0.1640625 | 46 | 0.359375 | 71 | 0.5546875 | 96 | 0.75 |
| 22 | 0.171875 | 47 | 0.3671875 | 72 | 0.5625 | 97 | 0.7578125 |
| 23 | 0.1796875 | 48 | 0.375 | 73 | 0.5703125 | 98 | 0.765625 |
| 24 | 0.1875 | 49 | 0.3828125 | 74 | 0.578125 | 99 | 0.7734375 |
| 25 | 0.1953125 | 50 | 0.390625 | 75 | 0.5859375 | 100 | 0.78125 |