To answer that, it's necessary to know the mass (or weight) of a yard of it.
But we must say that "by the kilogram" sounds like a very weird way of pricing
fabric. Are you really sure about that ?
Chat with our AI personalities
You cannot. Kilograms are a measure of mass, yards are a measure of length or distance.
9 feet of fabric
Assuming both refer to fabric of the same width, it will cost 12.49*16 = 199.84 currency units.
You will need 7.1 square yards of fabric.
One and a half yards of 60 inch width fabric.