Cups (US) to Fluid drams (US) converter

To convert cups (US) to fluid drams (US), enter the value in the first field. The result in fluid drams (US) is calculated automatically using the exact conversion factor.

1 US cup = 64 US fl dr
1 US fl dr = 0.015625 US cup

Formula: US fl dr = US cup × 64
US cup = US fl dr × 0.015625

Definitions: 1 US cup = 1/16 US gal; 1 US fl dr = 1/8 US fl oz

The US customary cup is half a US pint, or 8 US fluid ounces, and is the standard cup in American recipes. Cups differ between countries: the metric cup is 250 mL, and the cup used on US nutrition labels is rounded to 240 mL.

The US fluid dram (also written fluidram) is 1/8 of a US fluid ounce, about 3.7 mL. It comes from the apothecaries' system of medicine measures and is now rare, found mostly in older pharmacy references.

See the conversion table with commonly used values, handy for quick reference or study.