Convert barrel (US) [bbl (US)] to dram [dr] Online | Free volume Converter

Barrel (US) [bbl (US)]

The US barrel (bbl) is a unit of volume used primarily in the United States for measuring liquids like oil, chemicals, and other bulk fluids.

For crude oil, it equals 42 US gallons (about 159 liters), but for other liquids, the volume can vary depending on the product.

Summary:

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  1 US barrel (oil) = 42 US gallons ≈ 159 liters

  
  
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  Used mainly for crude oil measurement

  
  
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  Volume can differ for non-oil liquids

  
  

Dram [dr]

The dram is a traditional unit of weight or volume, depending on context:

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  In weight (avoirdupois system):
  
  1 dram ≈ 1.772 grams

  
  
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  In volume (apothecaries’ system):
  
  1 fluid dram ≈ 3.696 milliliters (mL)

  
  

Used historically in medicine and pharmacy for measuring small quantities of substances.

Summary:

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  Weight dram ≈ 1.772 g

  
  
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  Fluid dram ≈ 3.696 mL

  
  
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  Common in pharmaceutical and historical contexts