They are used in MOST countries of the World. It seems that only three countries don't use the metric system (SI) yet.
That being said, in the non-scientific communities, as well as in certain sciences, certain non-SI units are used - for example, Celsius or Centigrade for temperature (instead of Kelvin); time measured in minutes, hours, days and years (instead of seconds); or energy being measured in kWh (instead of Ws = Joule).
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Only three countries still cling to the "English" system, whereas the whole world uses metric. The SI units were established in 1960 as part of a review of the metric system used at the time; it uses metric units because it is the current version of the metric system.
Some countries only use Roman Numerals, so they use it a lot.
Some units are the cubic meter, the cubic decimeter (= liter) and the cubic centimeter (= milliliter).
There are many units that cannot be used to express a volume.There is something missing from your question to request the only unit.
The question can only be answered if the measurement units used for 14 are known.