US customary cups to imperial fluid drachms converter
Convert US customary cups (cup (US)) to imperial fluid drachms (fl dr (UK)).
Volume converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
cup (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.
66.61393477
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 cup (US) ≈ 66.61393477 fl dr (UK)
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAfl dr (UK) = cup (US) × 66.6139347703191
FORMULA & EXAMPLES
How to convert US customary cups to imperial fluid drachms
fl dr (UK) = cup (US) × 66.6139347703191
Multiply the cup (US) reading by 66.6139347703191.
Worked examples
1 cup (US) ≈ 66.61393477 fl dr (UK)
1 × 66.6139347703191 ≈ 66.61393477
16 cup (US) ≈ 1065.822956 fl dr (UK)
16 × 66.6139347703191 ≈ 1065.822956
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 customary cups to imperial fluid drachms table
Fixed reference · US customary cup 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 customary cup (cup (US))
Imperial fluid drachm (fl dr (UK))
0
0
0.1
6.661393477
0.5
33.30696739
1
66.61393477
2
133.2278695
5
333.0696739
10
666.1393477
25
1665.348369
50
3330.696739
100
6661.393477
1000
66613.93477
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.