Convert Imperial Gallon to US Fluid Ounce
Use this free converter to change imperial gallons (imp gal) into us fluid ounces (fl oz). Imperial gallon and us fluid ounce both measure volume. As a quick reference, 1 imp gal equals 153.72159 fl oz, and 1 fl oz equals 0.0065052671 imp gal.
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US Fluid Ounce (fl oz)
153.72159
1 imp gal = 153.72159 fl oz
Volume conversion table
| Imperial Gallon | US Fluid Ounce |
|---|---|
| 0.01 | 1.5372159 |
| 0.1 | 15.372159 |
| 0.5 | 76.860795 |
| 1 | 153.72159 |
| 2 | 307.44318 |
| 3 | 461.16477 |
| 5 | 768.60795 |
| 10 | 1537.2159 |
| 20 | 3074.4318 |
| 25 | 3843.0398 |
| 50 | 7686.0795 |
| 100 | 15372.159 |
| 1,000 | 153721.59 |
How to convert Imperial Gallon to US Fluid Ounce
Multiply the imperial gallon value by 153.72159 to get us fluid ounces.
- Enter the number of imperial gallons you want to convert.
- The converter instantly shows the equivalent value in us fluid ounces.
- Worked example: 15 imp gal × 153.72159 = 2305.8239 fl oz.
- Use the swap button to reverse the conversion (us fluid ounce to imperial gallon).
About these units
Imperial Gallon (imp gal)
- Definition
- An imperial gallon (imp gal) equals about 4.546 liters, roughly 20% larger than the US gallon.
- History
- It was defined in the UK in 1824 as the volume of ten pounds of water at a set temperature.
- Current use
- Imperial gallons are still used in the UK and some Commonwealth countries, often for fuel economy.
US Fluid Ounce (fl oz)
- Definition
- A US fluid ounce (fl oz) is a volume unit of about 29.57 milliliters, one sixteenth of a US pint.
- History
- It originated as the volume of one ounce of wine or water and was later fixed by definition.
- Current use
- Fluid ounces label drinks and cosmetics and appear in US recipes.
Frequently asked questions
How many us fluid ounces are in a imperial gallon?
There are 153.72159 fl oz in 1 imp gal. To convert, multiply the number of imperial gallons by 153.72159.
How do I convert imperial gallons to us fluid ounces?
Multiply the imperial gallon value by 153.72159 to get us fluid ounces. For example, 10 imp gal = 1537.2159 fl oz.
Is this imperial gallon-to-us fluid ounce converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Imperial Gallon to other volume units
| Unit | 1 Imperial Gallon equals |
|---|---|
| Liter (L) | 4.54609 L |
| Milliliter (mL) | 4546.09 mL |
| Cubic Meter (m³) | 0.00454609 m³ |
| Cubic Centimeter (cm³) | 4546.09 cm³ |
| US Gallon (gal) | 1.2009499 gal |
| US Quart (qt) | 4.8037997 qt |
| US Pint (pt) | 9.6075994 pt |
| US Cup (cup) | 19.215199 cup |
| US Fluid Ounce (fl oz) | 153.72159 fl oz |
| Tablespoon (tbsp) | 307.44318 tbsp |
| Teaspoon (tsp) | 922.32954 tsp |