US gallons to imperial fluid ounces
1 US gallon in imperial fluid ounces
1 gal = 133.2279 imp fl oz
imp fl oz = gal × 133.2278695
To convert US gallons to imperial fluid ounces, multiply by 133.2278695. The table below gives the values people look up most often, and the converter works for any number.
US gallons to imperial fluid ounces table
| US gallons | Imperial fluid ounces |
|---|---|
| 1 gal | 133.2279 |
| 2 gal | 266.4557 |
| 3 gal | 399.6836 |
| 4 gal | 532.9115 |
| 5 gal | 666.1393 |
| 10 gal | 1,332.2787 |
| 15 gal | 1,998.418 |
| 20 gal | 2,664.5574 |
| 25 gal | 3,330.6967 |
| 30 gal | 3,996.8361 |
| 40 gal | 5,329.1148 |
| 50 gal | 6,661.3935 |
| 75 gal | 9,992.0902 |
| 100 gal | 13,322.787 |
| 250 gal | 33,306.967 |
| 500 gal | 66,613.935 |
| 1,000 gal | 133,227.87 |
How the conversion works
The relationship is imp fl oz = gal × 133.2278695. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
US gallon: US liquid gallon. The imperial gallon is about 20% larger.
Common questions
- How many imperial fluid ounces are in one US gallon?
- One US gallon equals 133.2279 imperial fluid ounces. imp fl oz = gal × 133.2278695.
- How do you convert US gallons to imperial fluid ounces?
- Use imp fl oz = gal × 133.2278695. So 10 gal is 1,332.2787 imp fl oz.
- How many US gallons are in one imperial fluid ounce?
- One imperial fluid ounce equals 0.0075059 US gallons, which is the reverse of the conversion above.
- Is there more than one kind of US gallon?
- US liquid gallon. The imperial gallon is about 20% larger.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place