Question 1

What is a dram (volume)?

Accepted Answer

A fluid dram is 1/8 fluid ounce = 3.697 ml. Used in old pharmacy and bartending. 8 drams = 1 fl oz.

Question 2

Is dram a weight or volume?

Accepted Answer

Both exist. Fluid dram = 3.7 ml (volume). Avoirdupois dram = 1.77 g (weight). Context determines which.

Question 3

Are US and UK gallons the same?

Accepted Answer

No! US gallon = 3.785 liters. UK (Imperial) gallon = 4.546 liters. UK gallon is about 20% larger. Same applies to pints and fluid ounces.

Question 4

What's the most accurate way to measure volume?

Accepted Answer

For precision: measure by weight and convert using density. For liquids at eye level: read at the bottom of the meniscus curve.

dr to mL Converter

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