How many ounces are in a gallon?
How many oz in a half gallon? If you’re in the USA, you’ll find a gallon measures 160 USA fluid ounces. This is due to the fact that the Uk liquid gallon is smaller than the USA imperial gallon (3.785 liters compared to 4.546 litres).
When converting gallons to ounces (fluid ounces), you should also bear in mind that the US fluid ounce is larger than the UK imperial fluid ounce. The US fluid ounce measures 29.5735mL. By comparison, the UK (imperial) fluid ounce measures 28.4131mL. So, the US has a smaller gallon than the UK, but a slightly larger fluid ounce. It’s enough to cause your head to explode. When it comes to conversions between the two, here’s the info you need:
- 1 Gallon (US) = 128 Ounces (US, Fluid)
- 1 Gallon (UK) = 160 Ounces (UK, Fluid)
You should probably bear the size differences in mind if you’re considering changing your daily water intake, because there’s a big difference between the two. You could be drinking 3/4 of a litre more water if you use the UK imperial gallon conversion. If you’re interested in the weight of a gallon of water, by the way, you can find out how much a gallon of water weighs here.
How many ounces are in a gallon of water?
In the US, a gallon of water measures 128 fluid ounces. In the UK, a gallon of water measures 160 fluid ounces. This is because the US and UK use different measurements for gallons and fluid ounces.
As a side-note, if you’re looking to convert gallons of water into pounds or ounces of weight, give our water weight calculator a try.
How many gallons does 64 ounces equal?
A gallon of liquid in the United States equates to 128 US fluid ounces. This means that 64 US fluid ounces measures the same as 1/2 a US gallon.
Is 1 gallon the same as 64 oz?
No. A gallon of liquid contains 128 US fluid ounces. This means that half a gallon measures 64 US fluid ounces.
How many 32 oz make a gallon?
If you’re referencing the US gallon and US fluid ounce, 32 ounces equal one quart and equate to 1/4 of a gallon. You would therefore need 4 to make a US gallon.
Gallons to ounces conversions (US)
| Gallons to fl oz (US) | Gallons to fl oz (US) |
| 1/4 gallon = 32 fl oz | 10 gallons = 1280 fl oz |
| 1/2 gallon = 64 fl oz | 11 gallons = 1408 fl oz |
| 3/4 gallon = 96 fl oz | 12 gallons = 1536 fl oz |
| 1 gallon = 128 fl oz | 13 gallons = 1664 fl oz |
| 2 gallons = 256 fl oz | 14 gallons = 1792 fl oz |
| 3 gallons = 384 fl oz | 15 gallons = 1920 fl oz |
| 4 gallons = 512 fl oz | 16 gallons = 2048 fl oz |
| 5 gallons = 640 fl oz | 17 gallons = 2176 fl oz |
| 6 gallons = 768 fl oz | 18 gallons = 2304 fl oz |
| 7 gallons = 896 fl oz | 19 gallons = 2432 fl oz |
| 8 gallons = 1024 fl oz | 20 gallons = 2560 fl oz |
| 9 gallons = 1152 fl oz | 21 gallons = 2688 fl oz |
More information from the unit converter
How many oz in a half gallon? The answer is 0.015625000082554.
We assume you are converting between halfUSgallon and ounce [US, liquid].
You can view more details on each measurement unit:
half gallon or oz
The SI derived unit for volume is the cubic meter.
1 cubic meter is equal to 528.34410527459 half gallon, or 33814.022558919 oz.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between half US gallons and ounces.
Type in your own numbers in the form to convert the units!
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