US oil barrels
A US oil barrel, also known as a petroleum barrel, is a volume unit used in the oil and gas industry to measure crude oil or liquid petroleum gas (LPG). One US oil barrel is 42 US gallons or about 159 liters.
Milliliters
A Milliliter is a metric volume unit equal to one-thousandth of a liter. It is generally used to measure very small amounts of liquid in cooking or medication. For example, a standard teaspoon is about 5 ml.
When converting volume measurements, be sure to remember that the dimensions are cubed and so doubling the sides of a cube will increase the volume by a factor of eight. To make conversions easier, please use our conversion calculators such as the one on this page and refer to the calculation underneath if you want to understand how the conversion is calculated. To select your required conversion please start here: Milliliters conversion.
Milliliters as a measurement unit can be traced back to the French revolution and the start of the metric system. Metric measurements created a standardized and decimal system of measures that would be easy to use.