Customary Units
-- ounce -- furlong -- gallon
A millilitre.
They are both systems of measurement except that the metric system is simpler and used by the majority of the world.
Feet and inches, which is part of the U.S. Customary
It is customary.
metric and customary
grams i believe
Customary Units
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customary
-- ounce -- furlong -- gallon
A "gran" is a German measurement, it is neither customary or metric. A "gram" is a metric unit.
a ruler
It would be yards.
A millilitre.
They are both systems of measurement except that the metric system is simpler and used by the majority of the world.