Convert US fluid ounces (fl oz (US)) to imperial gallons (gal (UK)).
Volume converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
fl oz (US)
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LitreL
MillilitremL
Cubic metrem³
Cubic centimetrecm³
Cubic footft³
Cubic inchin³
US liquid gallongal (US)
Imperial gallongal (UK)
US fluid ouncefl oz (US)
Imperial fluid ouncefl oz (UK)
US customary cupcup (US)
Metric cupcup (metric)
US liquid pintpt (US)
US liquid quartqt (US)
Imperial pintpt (UK)
Imperial quartqt (UK)
US customary teaspoontsp (US)
US customary tablespoontbsp (US)
Metric teaspoon (5 mL)tsp (metric)
Metric tablespoon (15 mL)tbsp (metric)
Cubic yardyd³
Imperial gillgi (UK)
Imperial peckpk (UK)
Imperial bushelbu (UK)
Imperial fluid drachmfl dr (UK)
Imperial minimminim (UK)
No units found. Try a name or symbol.
0.006505267067
gal (UK)
esc
LitreL
MillilitremL
Cubic metrem³
Cubic centimetrecm³
Cubic footft³
Cubic inchin³
US liquid gallongal (US)
Imperial gallongal (UK)
US fluid ouncefl oz (US)
Imperial fluid ouncefl oz (UK)
US customary cupcup (US)
Metric cupcup (metric)
US liquid pintpt (US)
US liquid quartqt (US)
Imperial pintpt (UK)
Imperial quartqt (UK)
US customary teaspoontsp (US)
US customary tablespoontbsp (US)
Metric teaspoon (5 mL)tsp (metric)
Metric tablespoon (15 mL)tbsp (metric)
Cubic yardyd³
Imperial gillgi (UK)
Imperial peckpk (UK)
Imperial bushelbu (UK)
Imperial fluid drachmfl dr (UK)
Imperial minimminim (UK)
No units found. Try a name or symbol.
CONVERSION
1 fl oz (US) ≈ 0.006505267067 gal (UK)
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAgal (UK) = fl oz (US) × 0.00650526706741397
FORMULA & EXAMPLES
How to convert US fluid ounces to imperial gallons
gal (UK) = fl oz (US) × 0.00650526706741397
Multiply the fl oz (US) reading by 0.00650526706741397.
Worked examples
1 fl oz (US) ≈ 0.006505267067 gal (UK)
1 × 0.00650526706741397 ≈ 0.006505267067
8 fl oz (US) ≈ 0.05204213654 gal (UK)
8 × 0.00650526706741397 ≈ 0.05204213654
Frequently asked questions
Why do UK and US capacity readings differ?
The Imperial gallon is 4.54609 L, while the US liquid gallon is 3.785411784 L. Each system has 8 pints and 4 quarts per gallon. An Imperial gallon contains 160 Imperial fluid ounces; a US gallon contains 128 US fluid ounces.
US fluid ounces to imperial gallons table
Fixed reference · US fluid ounce to Imperial gallon
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
US fluid ounce (fl oz (US))
Imperial gallon (gal (UK))
0
0
0.1
0.0006505267067
0.5
0.003252633534
1
0.006505267067
2
0.01301053413
5
0.03252633534
10
0.06505267067
25
0.1626316767
50
0.3252633534
100
0.6505267067
1000
6.505267067
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.