Metric units .... dancing

This is for Mike and anyone else who wants a metric cheatsheet.

I'm going to use metric sizing here cos thats what they use in NZ and
I'm training myself to think back in those units and I want you to see how
simple it all is :

1m ~= 3 feet ~= 1 yard
1 sq m ~= 9 sq ft ( say 10 for easy calc)
there are 1000mm to a meter
25mm ~= 1 inch

1L ~= 1 quart ( ~4 liters to 1 american gallon)

1 km is 1000 meters and is about 0.625 of a mile (5/8)
a kilometer is also called a klick