I published an e- book entitled "Philippine Units of Measurements". Page 2 of the book shows the literal meaning of each measuring unit while page 3 shows a list of my online references related to Philippine measuring units.
Note: The estimated foreign unit equivalents are mere "estimates" and not 100% precise. They're merely based on my estimations. The list of links shown in page 3 may provide a more accurate/factual information. Visit the link below:
http://www.scribd.com/doc/18048667/Philippine-Units-of-Measurements
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There are exactley 7 units of measurements
SI units
If you mean the units, the most commonly used units are degrees, and radians.
Time
In square units of measurements