did you just take a non-metric measurement and raise it to a base 10 power? Can't you create some base 6 scale or something? 16 oz to a pint, 2 pints to a quart, 4 quarts to a gallon, 6 gallons to a "splosh".
Now there are 53 1/3 million trillion sploshes of water on earth. Or 1260 exalitres :)