The result of your conversion between grain/quart [US] and kilogram/litre appears here
To convert between Grain/quart [US] and Kilogram/litre you have to do the following:
First divide ((0.45359237/16)*(192/175)/480)/(0.0037854118/4) / 1/0.001 = 0.00006847
Then multiply the amount of Grain/quart [US] you want to convert to Kilogram/litre, use the chart below to guide you.
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