UK Imperial and the US framework (a variety of the Imperial framework). These were likely the most well-known because of the progression in innovation, development of economy and populace.
The matric framework arrived behind schedule into the usage and these days in greater part of the world matric framework is being utilized. Because of the way that world has become worldwide town and for simplicity of businessmen use normalize units to stay away from any false impressions and obstacle in their business.
Still we see that British and America utilizes their own framework now and again as it has become some portion of their convention and its difficult for the individuals to change and move to the new matric framework which came very late into the world.
US
1 US Fluid Gallon = 3.785 liters
1 Liters = 33.814 US fl oz
1 liquid Gallon = 3.785 x 33.814 = 128 ounces
UK
1 UK liquid gallon = 4.54609 liters
1 Liters = 35.1951 UK fl oz
1 liquid Gallon = 4.54609 x 35.1951 = 160 ounces