US fluid ounces to imperial fluid drachms converter
Convert US fluid ounces (fl oz (US)) to imperial fluid drachms (fl dr (UK)).
Volume converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
fl oz (US)
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.
8.326741846
fl dr (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) ≈ 8.326741846 fl dr (UK)
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAfl dr (UK) = fl oz (US) × 8.32674184628989
FORMULA & EXAMPLES
How to convert US fluid ounces to imperial fluid drachms
fl dr (UK) = fl oz (US) × 8.32674184628989
Multiply the fl oz (US) reading by 8.32674184628989.
Worked examples
1 fl oz (US) ≈ 8.326741846 fl dr (UK)
1 × 8.32674184628989 ≈ 8.326741846
8 fl oz (US) ≈ 66.61393477 fl dr (UK)
8 × 8.32674184628989 ≈ 66.61393477
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 fluid drachms table
Fixed reference · US fluid ounce to Imperial fluid drachm
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 fluid drachm (fl dr (UK))
0
0
0.1
0.8326741846
0.5
4.163370923
1
8.326741846
2
16.65348369
5
41.63370923
10
83.26741846
25
208.1685462
50
416.3370923
100
832.6741846
1000
8326.741846
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.