In the metric system, the most common unit used is a Newton, which is a (kg x m)/sec^2 and in the English system, the most common unit is a Pound, which is a (slug x ft)/sec^2.
But really, any unit that conforms to a the diagram of a mass times a length divided by a time squared can be used to measure force. A microgram x kilometer divided by decade^2 is also a unit to measure force, albeit a very ugly one. I hope this helps :)
