Why is the dram unit used in certain fields?

Dram is used primarily in pharmacy, medicine, and mixology to specify small liquid doses or interpret historical recipes.

Does the cup measurement always equal 236.588 mL?

Typically yes, but some US nutrition labeling uses a 'legal' cup defined as 240 mL.

Can I use this conversion for modern cooking outside the US?

This conversion is most applicable within US customary contexts or specialized uses involving drams.

How to Convert from Cup (US) to Dram [dr] | Online Volume Unit Converter

Easily convert volume measurements from US customary cup to dram [dr] using our straightforward online unit converter. Ideal for culinary, pharmacy, and historical uses.

Cup (US)

Dram [dr]

Please check your input. It must be a valid numeric value.

Cup (US) to Dram [dr] Conversion Table

Cup (US)	Dram [dr]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Cup (US) to Dram [dr] Conversion Table
Cup (US)	Dram [dr]

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What Is This Tool?

This converter allows you to change volume values from the US customary cup, commonly used in cooking, into dram units, which are historical units often applied in pharmacy and mixology.

How to Use This Tool?

Enter the volume you wish to convert in cups (US).
Select the target unit as dram [dr].
Click the convert button to see the equivalent volume in drams.
Use the result for culinary, medical, or historical applications.

Key Features

Converts US customary cup volumes to dram units seamlessly.
Supports culinary, medical, and historical measurement needs.
Browser-based tool requiring no installation.
Utilizes a precise conversion factor of 1 cup (US) = 64 dram [dr].

Examples

2 cups (US) equals 128 dram [dr].
0.5 cup (US) converts to 32 dram [dr].

Common Use Cases

Measuring small liquid doses in pharmacy or medicine based on historical units.
Interpreting traditional cocktail recipes in mixology that use drams.
Converting older recipes or labels that use pre-metric volume measurements.

Tips & Best Practices

Be aware that dram units vary slightly between Imperial and US systems.
Note the cup measurement used (exact or legal cup) to understand slight volume differences.
Use this converter primarily for specialty fields where drams remain relevant.

Limitations

The dram's volume differs slightly between Imperial and US customary systems.
Cup measurements can vary between 236.588 mL and 240 mL (legal cup), affecting precision.
Dram is mostly obsolete and uncommon outside of specialized or historical contexts.

Frequently Asked Questions

Why is the dram unit used in certain fields?: Dram is used primarily in pharmacy, medicine, and mixology to specify small liquid doses or interpret historical recipes.
Does the cup measurement always equal 236.588 mL?: Typically yes, but some US nutrition labeling uses a 'legal' cup defined as 240 mL.
Can I use this conversion for modern cooking outside the US?: This conversion is most applicable within US customary contexts or specialized uses involving drams.

Key Terminology

Cup (US): A unit of volume equal to 8 US fluid ounces or approximately 236.588 milliliters, mainly employed in cooking.
Dram [dr]: A historical unit of liquid volume, approximately 1/8 of a fluid ounce, used chiefly in pharmacy, medicine, and traditional recipes.
Legal cup: A standardized cup used in US nutrition labeling defined as exactly 240 milliliters.

Quick Knowledge Check

What volume does 1 US customary cup equal in drams?

32 dram

64 dram

128 dram

In which field is the dram unit most commonly used?

Carpentry

Pharmacy and medicine

Architecture

What is a typical volume for a US customary cup in milliliters?

236.588 mL

100 mL

300 mL

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